9 files changed, 1032 insertions, 0 deletions
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_04.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_04.cpp
new file mode 100644
index 0000000..f132e11
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_04.cpp
@@ -0,0 +1,61 @@
+// Fig. 14.4: fig14_04.cpp
+// Create a sequential file.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::ios;
+using std::cerr;
+using std::endl;
+
+#include <fstream>
+
+using std::ofstream;
+
+#include <cstdlib>  // exit prototype
+
+int main()
+{
+   // ofstream constructor opens file
+   ofstream outClientFile( "clients.dat", ios::out ); 
+
+   // exit program if unable to create file
+   if ( !outClientFile ) {  // overloaded ! operator
+      cerr << "File could not be opened" << endl;
+      exit( 1 );
+
+   } // end if
+
+   cout << "Enter the account, name, and balance." << endl
+        << "Enter end-of-file to end input.\n? ";
+
+   int account;
+   char name[ 30 ];
+   double balance;
+
+   // read account, name and balance from cin, then place in file
+   while ( cin >> account >> name >> balance ) {
+      outClientFile << account << ' ' << name << ' ' << balance
+                    << endl;
+      cout << "? ";
+
+   } // end while
+
+   return 0;  // ofstream destructor closes file
+
+} // end main
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_07.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_07.cpp
new file mode 100644
index 0000000..7067985
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_07.cpp
@@ -0,0 +1,78 @@
+// Fig. 14.7: fig14_07.cpp
+// Reading and printing a sequential file.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::ios;
+using std::cerr;
+using std::endl;
+using std::left;
+using std::right;
+using std::fixed;
+using std::showpoint;
+
+#include <fstream>
+
+using std::ifstream;
+
+#include <iomanip>
+
+using std::setw;
+using std::setprecision;
+
+#include <cstdlib> // exit prototype
+
+void outputLine( int, const char * const, double );
+
+int main()
+{
+   // ifstream constructor opens the file
+   ifstream inClientFile( "clients.dat", ios::in );
+
+   // exit program if ifstream could not open file
+   if ( !inClientFile ) {
+      cerr << "File could not be opened" << endl;
+      exit( 1 );
+
+   } // end if
+
+   int account;
+   char name[ 30 ];
+   double balance;
+
+   cout << left << setw( 10 ) << "Account" << setw( 13 ) 
+        << "Name" << "Balance" << endl << fixed << showpoint;
+
+   // display each record in file
+   while ( inClientFile >> account >> name >> balance )
+      outputLine( account, name, balance );
+
+   return 0; // ifstream destructor closes the file
+
+} // end main
+
+// display single record from file
+void outputLine( int account, const char * const name, 
+   double balance )
+{
+   cout << left << setw( 10 ) << account << setw( 13 ) << name
+        << setw( 7 ) << setprecision( 2 ) << right << balance
+        << endl;
+
+} // end function outputLine
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_08.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_08.cpp
new file mode 100644
index 0000000..ec49dee
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_08.cpp
@@ -0,0 +1,163 @@
+// Fig. 14.8: fig14_08.cpp
+// Credit inquiry program.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::ios;
+using std::cerr;
+using std::endl;
+using std::fixed;
+using std::showpoint;
+using std::left;
+using std::right;
+
+#include <fstream>
+
+using std::ifstream;
+
+#include <iomanip>
+
+using std::setw;
+using std::setprecision;
+
+#include <cstdlib>    
+ 
+enum RequestType { ZERO_BALANCE = 1, CREDIT_BALANCE, 
+   DEBIT_BALANCE, END };
+int getRequest();
+bool shouldDisplay( int, double );
+void outputLine( int, const char * const, double );
+
+int main()
+{
+   // ifstream constructor opens the file
+   ifstream inClientFile( "clients.dat", ios::in );
+
+   // exit program if ifstream could not open file
+   if ( !inClientFile ) {
+      cerr << "File could not be opened" << endl;
+      exit( 1 );
+
+   } // end if
+
+   int request;
+   int account;
+   char name[ 30 ];
+   double balance;
+
+   // get user's request (e.g., zero, credit or debit balance)
+   request = getRequest();
+
+   // process user's request
+   while ( request != END ) {
+
+      switch ( request ) {
+
+         case ZERO_BALANCE:
+            cout << "\nAccounts with zero balances:\n";
+            break;
+
+         case CREDIT_BALANCE:
+            cout << "\nAccounts with credit balances:\n";
+            break;
+
+         case DEBIT_BALANCE:
+            cout << "\nAccounts with debit balances:\n";
+            break;
+
+      } // end switch
+
+      // read account, name and balance from file
+      inClientFile >> account >> name >> balance;
+
+      // display file contents (until eof)
+      while ( !inClientFile.eof() ) {
+
+         // display record
+         if ( shouldDisplay( request, balance ) )
+            outputLine( account, name, balance );
+
+         // read account, name and balance from file
+         inClientFile >> account >> name >> balance;
+
+      } // end inner while
+      
+      inClientFile.clear();    // reset eof for next input
+      inClientFile.seekg( 0 ); // move to beginning of file
+      request = getRequest();  // get additional request from user
+
+   } // end outer while
+
+   cout << "End of run." << endl;
+
+   return 0; // ifstream destructor closes the file
+
+} // end main
+
+// obtain request from user
+int getRequest()
+{ 
+   int request;
+
+   // display request options
+   cout << "Enter request" << endl
+        << " 1 - List accounts with zero balances" << endl
+        << " 2 - List accounts with credit balances" << endl
+        << " 3 - List accounts with debit balances" << endl
+        << " 4 - End of run" << fixed << showpoint;
+
+   // input user request
+   do {
+      cout << "\n? ";
+      cin >> request;
+
+   } while( request < ZERO_BALANCE && request > END );
+
+   return request;
+
+} // end function getRequest
+
+// determine whether to display given record
+bool shouldDisplay( int type, double balance )
+{
+   // determine whether to display credit balances
+   if ( type == CREDIT_BALANCE && balance < 0 )
+      return true;
+
+   // determine whether to display debit balances
+   if ( type == DEBIT_BALANCE && balance > 0 )
+      return true;
+
+   // determine whether to display zero balances
+   if ( type == ZERO_BALANCE && balance == 0 )
+      return true;
+
+   return false;
+
+} // end function shouldDisplay
+
+// display single record from file
+void outputLine( int account, const char * const name, 
+   double balance )
+{
+   cout << left << setw( 10 ) << account << setw( 13 ) << name
+        << setw( 7 ) << setprecision( 2 ) << right << balance
+        << endl;
+
+} // end function outputLine
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_12.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_12.cpp
new file mode 100644
index 0000000..48ba334
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_12.cpp
@@ -0,0 +1,53 @@
+// Fig. 14.12: fig14_12.cpp
+// Creating a randomly accessed file.
+#include <iostream>
+
+using std::cerr;
+using std::endl;
+using std::ios;
+
+#include <fstream>
+
+using std::ofstream;
+
+#include <cstdlib>
+#include "clientData.h"  // ClientData class definition
+
+int main()
+{
+   ofstream outCredit( "credit.dat", ios::binary );
+
+   // exit program if ofstream could not open file
+   if ( !outCredit ) {
+      cerr << "File could not be opened." << endl;
+      exit( 1 );
+
+   } // end if
+
+   // create ClientData with no information
+   ClientData blankClient;
+
+   // output 100 blank records to file
+   for ( int i = 0; i < 100; i++ )
+      outCredit.write( 
+         reinterpret_cast< const char * >( &blankClient ), 
+         sizeof( ClientData ) );
+
+   return 0;
+
+} // end main
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_13.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_13.cpp
new file mode 100644
index 0000000..fefa264
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_13.cpp
@@ -0,0 +1,94 @@
+// Fig. 14.13: fig14_13.cpp
+// Writing to a random access file.
+#include <iostream>
+
+using std::cerr;
+using std::endl;
+using std::cout;
+using std::cin;
+using std::ios;
+
+#include <iomanip>
+
+using std::setw;
+
+#include <fstream>
+
+using std::ofstream;
+
+#include <cstdlib>
+#include "clientData.h"  // ClientData class definition
+
+int main()
+{
+   int accountNumber;
+   char lastName[ 15 ];
+   char firstName[ 10 ];
+   double balance;
+
+   ofstream outCredit( "credit.dat", ios::binary );
+
+   // exit program if ofstream cannot open file
+   if ( !outCredit ) {
+      cerr << "File could not be opened." << endl;
+      exit( 1 );
+
+   } // end if
+
+   cout << "Enter account number "
+        << "(1 to 100, 0 to end input)\n? ";
+
+   // require user to specify account number
+   ClientData client;
+   cin >> accountNumber;
+   client.setAccountNumber( accountNumber );
+
+   // user enters information, which is copied into file
+   while ( client.getAccountNumber() > 0 && 
+      client.getAccountNumber() <= 100 ) {
+
+      // user enters last name, first name and balance
+      cout << "Enter lastname, firstname, balance\n? ";
+      cin >> setw( 15 ) >> lastName;
+      cin >> setw( 10 ) >> firstName;
+      cin >> balance;
+
+      // set record lastName, firstName and balance values
+      client.setLastName( lastName );
+      client.setFirstName( firstName );
+      client.setBalance( balance );
+
+      // seek position in file of user-specified record
+      outCredit.seekp( ( client.getAccountNumber() - 1 ) * 
+         sizeof( ClientData ) );
+
+      // write user-specified information in file
+      outCredit.write( 
+         reinterpret_cast< const char * >( &client ),
+         sizeof( ClientData ) );
+
+      // enable user to specify another account number
+      cout << "Enter account number\n? ";
+      cin >> accountNumber;
+      client.setAccountNumber( accountNumber );
+
+   } // end while
+
+   return 0;
+
+} // end main
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_14.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_14.cpp
new file mode 100644
index 0000000..6a9728e
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_14.cpp
@@ -0,0 +1,91 @@
+// Fig. 14.14: fig14_14.cpp
+// Reading a random access file.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+using std::ios;
+using std::cerr;
+using std::left;
+using std::right;
+using std::fixed;
+using std::showpoint;
+
+#include <iomanip>
+
+using std::setprecision;
+using std::setw;
+
+#include <fstream>
+
+using std::ifstream;
+using std::ostream;
+
+#include <cstdlib>
+#include "clientData.h"  // ClientData class definition
+ 
+void outputLine( ostream&, const ClientData & );
+
+int main()
+{
+   ifstream inCredit( "credit.dat", ios::in );
+
+   // exit program if ifstream cannot open file
+   if ( !inCredit ) {
+      cerr << "File could not be opened." << endl;
+      exit( 1 );
+
+   } // end if
+
+   cout << left << setw( 10 ) << "Account" << setw( 16 )
+        << "Last Name" << setw( 11 ) << "First Name" << left
+        << setw( 10 ) << right << "Balance" << endl;
+
+   ClientData client; // create record
+
+   // read first record from file
+   inCredit.read( reinterpret_cast< char * >( &client ), 
+      sizeof( ClientData ) );
+
+   // read all records from file
+   while ( inCredit && !inCredit.eof() ) {
+
+      // display record
+      if ( client.getAccountNumber() != 0 )
+         outputLine( cout, client );
+
+      // read next from file
+      inCredit.read( reinterpret_cast< char * >( &client ),
+         sizeof( ClientData ) );
+
+   } // end while
+
+   return 0;
+
+} // end main
+
+// display single record
+void outputLine( ostream &output, const ClientData &record )
+{
+   output << left << setw( 10 ) << record.getAccountNumber()
+          << setw( 16 ) << record.getLastName().data()
+          << setw( 11 ) << record.getFirstName().data()
+          << setw( 10 ) << setprecision( 2 ) << right << fixed 
+          << showpoint << record.getBalance() << endl;
+
+} // end outputLine
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_15.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_15.cpp
new file mode 100644
index 0000000..da2ef2e
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/Fig14_15.cpp
@@ -0,0 +1,331 @@
+// Fig. 14.15: fig14_15.cpp
+// This program reads a random access file sequentially, updates
+// data previously written to the file, creates data to be placed
+// in the file, and deletes data previously in the file.
+#include <iostream>
+
+using std::cout;
+using std::cerr;
+using std::cin;
+using std::endl;
+using std::ios;
+using std::left;
+using std::right;
+using std::fixed;
+using std::showpoint;
+
+#include <fstream>
+
+using std::ofstream;
+using std::ostream;
+using std::fstream;
+
+#include <iomanip>
+
+using std::setw;
+using std::setprecision;
+
+#include <cstdlib>
+#include "clientData.h"  // ClientData class definition
+
+int enterChoice();
+void printRecord( fstream& );
+void updateRecord( fstream& );
+void newRecord( fstream& );
+void deleteRecord( fstream& );
+void outputLine( ostream&, const ClientData & );
+int getAccount( const char * const );
+
+enum Choices { PRINT = 1, UPDATE, NEW, DELETE, END };
+
+int main()
+{
+   // open file for reading and writing
+   fstream inOutCredit( "credit.dat", ios::in | ios::out );
+
+   // exit program if fstream cannot open file
+   if ( !inOutCredit ) {
+      cerr << "File could not be opened." << endl;
+      exit ( 1 );
+
+   } // end if
+   
+   int choice;
+
+   // enable user to specify action
+   while ( ( choice = enterChoice() ) != END ) {
+
+      switch ( choice ) {
+
+         // create text file from record file
+         case PRINT:
+            printRecord( inOutCredit );
+            break;
+
+         // update record
+         case UPDATE:
+            updateRecord( inOutCredit );
+            break;
+
+         // create record
+         case NEW:
+            newRecord( inOutCredit );
+            break;
+
+         // delete existing record
+         case DELETE:
+            deleteRecord( inOutCredit );
+            break;
+
+         // display error if user does not select valid choice
+         default:
+            cerr << "Incorrect choice" << endl;
+            break;
+
+      } // end switch
+
+      inOutCredit.clear(); // reset end-of-file indicator
+
+   } // end while
+
+   return 0;
+
+} // end main
+
+// enable user to input menu choice
+int enterChoice()
+{
+   // display available options
+   cout << "\nEnter your choice" << endl
+        << "1 - store a formatted text file of accounts" << endl
+        << "    called \"print.txt\" for printing" << endl
+        << "2 - update an account" << endl
+        << "3 - add a new account" << endl
+        << "4 - delete an account" << endl
+        << "5 - end program\n? ";
+
+   int menuChoice;
+   cin >> menuChoice; // receive choice from user
+
+   return menuChoice;
+
+} // end function enterChoice
+
+// create formatted text file for printing
+void printRecord( fstream &readFromFile )
+{
+   // create text file
+   ofstream outPrintFile( "print.txt", ios::out );
+
+   // exit program if ofstream cannot create file
+   if ( !outPrintFile ) {
+      cerr << "File could not be created." << endl;
+      exit( 1 );
+
+   } // end if
+
+   outPrintFile << left << setw( 10 ) << "Account" << setw( 16 )
+       << "Last Name" << setw( 11 ) << "First Name" << right
+       << setw( 10 ) << "Balance" << endl;
+
+   // set file-position pointer to beginning of record file
+   readFromFile.seekg( 0 );
+
+   // read first record from record file
+   ClientData client;
+   readFromFile.read( reinterpret_cast< char * >( &client ),
+      sizeof( ClientData ) );
+
+   // copy all records from record file into text file
+   while ( !readFromFile.eof() ) {
+
+      // write single record to text file
+      if ( client.getAccountNumber() != 0 )
+         outputLine( outPrintFile, client );
+
+      // read next record from record file
+      readFromFile.read( reinterpret_cast< char * >( &client ), 
+         sizeof( ClientData ) );
+
+   } // end while
+
+} // end function printRecord
+
+// update balance in record
+void updateRecord( fstream &updateFile )
+{
+   // obtain number of account to update
+   int accountNumber = getAccount( "Enter account to update" );
+
+   // move file-position pointer to correct record in file
+   updateFile.seekg( 
+      ( accountNumber - 1 ) * sizeof( ClientData ) );
+
+   // read first record from file
+   ClientData client;
+   updateFile.read( reinterpret_cast< char * >( &client ), 
+      sizeof( ClientData ) );
+
+   // update record
+   if ( client.getAccountNumber() != 0 ) {
+      outputLine( cout, client );
+
+      // request user to specify transaction
+      cout << "\nEnter charge (+) or payment (-): ";
+      double transaction; // charge or payment
+      cin >> transaction;
+
+      // update record balance
+      double oldBalance = client.getBalance();
+      client.setBalance( oldBalance + transaction );
+      outputLine( cout, client );
+
+      // move file-position pointer to correct record in file
+      updateFile.seekp(
+         ( accountNumber - 1 ) * sizeof( ClientData ) );
+
+      // write updated record over old record in file
+      updateFile.write( 
+         reinterpret_cast< const char * >( &client ), 
+         sizeof( ClientData ) );
+
+   } // end if
+
+   // display error if account does not exist
+   else
+      cerr << "Account #" << accountNumber 
+         << " has no information." << endl;
+
+} // end function updateRecord
+
+// create and insert record
+void newRecord( fstream &insertInFile )
+{
+   // obtain number of account to create
+   int accountNumber = getAccount( "Enter new account number" );
+
+   // move file-position pointer to correct record in file
+   insertInFile.seekg( 
+      ( accountNumber - 1 ) * sizeof( ClientData ) );
+
+   // read record from file
+   ClientData client;
+   insertInFile.read( reinterpret_cast< char * >( &client ), 
+      sizeof( ClientData ) );
+
+   // create record, if record does not previously exist
+   if ( client.getAccountNumber() == 0 ) {
+
+      char lastName[ 15 ];
+      char firstName[ 10 ];
+      double balance;
+
+      // user enters last name, first name and balance
+      cout << "Enter lastname, firstname, balance\n? ";
+      cin >> setw( 15 ) >> lastName;
+      cin >> setw( 10 ) >> firstName;
+      cin >> balance;
+
+      // use values to populate account values
+      client.setLastName( lastName );
+      client.setFirstName( firstName );
+      client.setBalance( balance );
+      client.setAccountNumber( accountNumber );
+
+      // move file-position pointer to correct record in file
+      insertInFile.seekp( ( accountNumber - 1 ) * 
+         sizeof( ClientData ) );
+
+      // insert record in file
+      insertInFile.write( 
+         reinterpret_cast< const char * >( &client ), 
+         sizeof( ClientData ) );
+
+   } // end if
+
+   // display error if account previously exists
+   else
+      cerr << "Account #" << accountNumber
+           << " already contains information." << endl;
+
+} // end function newRecord
+
+// delete an existing record
+void deleteRecord( fstream &deleteFromFile )
+{
+   // obtain number of account to delete
+   int accountNumber = getAccount( "Enter account to delete" );
+
+   // move file-position pointer to correct record in file
+   deleteFromFile.seekg( 
+      ( accountNumber - 1 ) * sizeof( ClientData ) );
+
+   // read record from file
+   ClientData client;
+   deleteFromFile.read( reinterpret_cast< char * >( &client ), 
+      sizeof( ClientData ) );
+
+   // delete record, if record exists in file
+   if ( client.getAccountNumber() != 0 ) {
+      ClientData blankClient;
+
+      // move file-position pointer to correct record in file
+      deleteFromFile.seekp( ( accountNumber - 1 ) * 
+         sizeof( ClientData ) );
+
+      // replace existing record with blank record
+      deleteFromFile.write( 
+         reinterpret_cast< const char * >( &blankClient ), 
+         sizeof( ClientData ) );
+
+      cout << "Account #" << accountNumber << " deleted.\n";
+
+   } // end if
+
+   // display error if record does not exist
+   else
+      cerr << "Account #" << accountNumber << " is empty.\n";
+
+} // end deleteRecord
+
+// display single record
+void outputLine( ostream &output, const ClientData &record )
+{
+   output << left << setw( 10 ) << record.getAccountNumber()
+          << setw( 16 ) << record.getLastName().data()
+          << setw( 11 ) << record.getFirstName().data()
+          << setw( 10 ) << setprecision( 2 ) << right << fixed 
+          << showpoint << record.getBalance() << endl;
+
+} // end function outputLine
+
+// obtain account-number value from user
+int getAccount( const char * const prompt )
+{
+   int accountNumber;
+
+   // obtain account-number value
+   do {
+      cout << prompt << " (1 - 100): ";
+      cin >> accountNumber;
+
+   } while ( accountNumber < 1 || accountNumber > 100 );
+
+   return accountNumber;
+
+} // end function getAccount
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.cpp b/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.cpp
new file mode 100644
index 0000000..3885357
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.cpp
@@ -0,0 +1,105 @@
+// Fig. 14.11: ClientData.cpp
+// Class ClientData stores customer's credit information.
+#include <iostream>
+
+using std::string;
+
+#include <cstring>
+#include "clientData.h"
+
+// default ClientData constructor
+ClientData::ClientData( int accountNumberValue, 
+   string lastNameValue, string firstNameValue,
+   double balanceValue )
+{
+   setAccountNumber( accountNumberValue );
+   setLastName( lastNameValue );
+   setFirstName( firstNameValue );
+   setBalance( balanceValue );
+
+} // end ClientData constructor
+
+// get account-number value
+int ClientData::getAccountNumber() const
+{
+   return accountNumber;
+
+} // end function getAccountNumber
+
+// set account-number value
+void ClientData::setAccountNumber( int accountNumberValue )
+{
+   accountNumber = accountNumberValue;
+
+} // end function setAccountNumber
+
+// get last-name value
+string ClientData::getLastName() const
+{
+   return lastName;
+
+} // end function getLastName
+
+// set last-name value
+void ClientData::setLastName( string lastNameString )
+{
+   // copy at most 15 characters from string to lastName
+   const char *lastNameValue = lastNameString.data();
+   int length = strlen( lastNameValue );
+   length = ( length < 15 ? length : 14 );
+   strncpy( lastName, lastNameValue, length );
+
+   // append null character to lastName
+   lastName[ length ] = '\0';
+
+} // end function setLastName
+
+// get first-name value
+string ClientData::getFirstName() const
+{
+   return firstName;
+
+} // end function getFirstName
+
+// set first-name value
+void ClientData::setFirstName( string firstNameString )
+{
+   // copy at most 10 characters from string to firstName
+   const char *firstNameValue = firstNameString.data();
+   int length = strlen( firstNameValue );
+   length = ( length < 10 ? length : 9 );
+   strncpy( firstName, firstNameValue, length );
+
+   // append new-line character to firstName
+   firstName[ length ] = '\0';
+
+} // end function setFirstName
+
+// get balance value
+double ClientData::getBalance() const
+{
+   return balance;
+
+} // end function getBalance
+
+// set balance value
+void ClientData::setBalance( double balanceValue )
+{
+   balance = balanceValue;
+
+} // end function setBalance
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file
diff --git a/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.h b/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.h
new file mode 100644
index 0000000..37afb23
--- /dev/null
+++ b/Bachelor/Prog2/Codebeispiele/4_ch14/clientData.h
@@ -0,0 +1,56 @@
+// Fig. 14.10: clientData.h
+// Class ClientData definition used in Fig. 14.12�Fig. 14.15.
+#ifndef CLIENTDATA_H
+#define CLIENTDATA_H
+
+#include <iostream>
+
+using std::string;
+
+class ClientData {
+
+public:
+
+   // default ClientData constructor
+   ClientData( int = 0, string = "", string = "", double = 0.0 );
+
+   // accessor functions for accountNumber
+   void setAccountNumber( int );
+   int getAccountNumber() const;
+
+   // accessor functions for lastName
+   void setLastName( string );
+   string getLastName() const;
+
+   // accessor functions for firstName
+   void setFirstName( string );
+   string getFirstName() const;
+
+   // accessor functions for balance
+   void setBalance( double );
+   double getBalance() const;
+
+private:
+   int accountNumber;
+   char lastName[ 15 ];
+   char firstName[ 10 ];
+   double balance;
+
+}; // end class ClientData
+
+#endif
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/
+\ No newline at end of file