diff options
| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Bachelor/Prog1/examples/ch02/Fig02_22.cpp | |
| download | Studium-33613a85afc4b1481367fbe92a17ee59c240250b.tar.gz Studium-33613a85afc4b1481367fbe92a17ee59c240250b.tar.bz2 | |
Diffstat (limited to 'Bachelor/Prog1/examples/ch02/Fig02_22.cpp')
| -rw-r--r-- | Bachelor/Prog1/examples/ch02/Fig02_22.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/Bachelor/Prog1/examples/ch02/Fig02_22.cpp b/Bachelor/Prog1/examples/ch02/Fig02_22.cpp new file mode 100644 index 0000000..025f666 --- /dev/null +++ b/Bachelor/Prog1/examples/ch02/Fig02_22.cpp @@ -0,0 +1,95 @@ +// Fig. 2.22: fig02_22.cpp
+// Counting letter grades.
+#include <iostream>
+
+using std::cout;
+using std::cin;
+using std::endl;
+
+// function main begins program execution
+int main()
+{
+ int grade; // one grade
+ int aCount = 0; // number of As
+ int bCount = 0; // number of Bs
+ int cCount = 0; // number of Cs
+ int dCount = 0; // number of Ds
+ int fCount = 0; // number of Fs
+
+ cout << "Enter the letter grades." << endl
+ << "Enter the EOF character to end input." << endl;
+
+ // loop until user types end-of-file key sequence
+ while ( ( grade = cin.get() ) != EOF ) {
+
+ // determine which grade was input
+ switch ( grade ) { // switch structure nested in while
+
+ case 'A': // grade was uppercase A
+ case 'a': // or lowercase a
+ ++aCount; // increment aCount
+ break; // necessary to exit switch
+
+ case 'B': // grade was uppercase B
+ case 'b': // or lowercase b
+ ++bCount; // increment bCount
+ break; // exit switch
+
+ case 'C': // grade was uppercase C
+ case 'c': // or lowercase c
+ ++cCount; // increment cCount
+ break; // exit switch
+
+ case 'D': // grade was uppercase D
+ case 'd': // or lowercase d
+ ++dCount; // increment dCount
+ break; // exit switch
+
+ case 'F': // grade was uppercase F
+ case 'f': // or lowercase f
+ ++fCount; // increment fCount
+ break; // exit switch
+
+ case '\n': // ignore newlines,
+ case '\t': // tabs,
+ case ' ': // and spaces in input
+ break; // exit switch
+
+ default: // catch all other characters
+ cout << "Incorrect letter grade entered."
+ << " Enter a new grade." << endl;
+ break; // optional; will exit switch anyway
+
+ } // end switch
+
+ } // end while
+
+ // output summary of results
+ cout << "\n\nTotals for each letter grade are:"
+ << "\nA: " << aCount // display number of A grades
+ << "\nB: " << bCount // display number of B grades
+ << "\nC: " << cCount // display number of C grades
+ << "\nD: " << dCount // display number of D grades
+ << "\nF: " << fCount // display number of F grades
+ << endl;
+
+ return 0; // indicate successful termination
+
+} // end function 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. *
+ *************************************************************************/
|