From 33613a85afc4b1481367fbe92a17ee59c240250b Mon Sep 17 00:00:00 2001
From: Sven Eisenhauer <sven@sven-eisenhauer.net>
Date: Fri, 10 Nov 2023 15:11:48 +0100
Subject: add new repo

---
 .../hjp5/examples/Listing2211.java                 | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Master/Reference Architectures and Patterns/hjp5/examples/Listing2211.java

(limited to 'Master/Reference Architectures and Patterns/hjp5/examples/Listing2211.java')

diff --git a/Master/Reference Architectures and Patterns/hjp5/examples/Listing2211.java b/Master/Reference Architectures and Patterns/hjp5/examples/Listing2211.java
new file mode 100644
index 0000000..ce7d764
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/hjp5/examples/Listing2211.java	
@@ -0,0 +1,59 @@
+/* Listing2211.java */
+
+class Counter2211
+{
+  int cnt;
+
+  public Counter2211(int cnt)
+  {
+    this.cnt = cnt;
+  }
+
+  public int nextNumber()
+  {
+    int ret = cnt;
+    //Hier erfolgen ein paar zeitaufwändige Berechnungen, um
+    //so zu tun, als sei das Errechnen des Nachfolgezählers
+    //eine langwierige Operation, die leicht durch den
+    //Scheduler unterbrochen werden kann.
+    double x = 1.0, y, z;
+    for (int i= 0; i < 1000; ++i) {
+      x = Math.sin((x*i%35)*1.13);
+      y = Math.log(x+10.0);
+      z = Math.sqrt(x+y);
+    }
+    //Jetzt ist der Wert gefunden
+    cnt++;
+    return ret;
+  }
+}
+
+public class Listing2211
+extends Thread
+{
+  private String name;
+  private Counter2211 counter;
+
+  public Listing2211(String name, Counter2211 counter)
+  {
+    this.name = name;
+    this.counter = counter;
+  }
+
+  public static void main(String[] args)
+  {
+    Thread[] t = new Thread[5];
+    Counter2211 cnt = new Counter2211(10);
+    for (int i = 0; i < 5; ++i) {
+      t[i] = new Listing2211("Thread-"+i,cnt);
+      t[i].start();
+    }
+  }
+
+  public void run()
+  {
+    while (true) {
+      System.out.println(counter.nextNumber()+" for "+name);
+    }
+  }
+}
\ No newline at end of file
-- 
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