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Beide Seiten der vorigen RevisionVorhergehende Überarbeitung
api:documentation:threads:start [2025/03/05 10:24] – [Monitorkonzept] martinapi:documentation:threads:start [2025/03/05 10:26] (aktuell) – [synchronized-Block] martin
Zeile 360: Zeile 360:
  
 ===== synchronized-Block ===== ===== synchronized-Block =====
 +<HTML>
 +
 +<div class="java-online" style="height: 60vh; width: 90%" data-java-online="{'withBottomPanel': false, 'id': 'ThreadTest2'}">
 +
 +<script type="text/plain" title="ThreadTest1.java">
 +
 +Counter counter = new Counter();
 +
 +for (int i = 0; i < 3; i++) {
 +   Incrementer inc = new Incrementer(counter, 1e6, i);
 +   Thread t = new Thread(inc);
 +   t.setName("Thread " + i);
 +   t.start();
 +}
 +
 +class Counter {
 +   long counter = 0;
 +}
 +
 +
 +class Incrementer implements Runnable {
 +   
 +   Counter counter;
 +   long increment = 0;
 +   int index;
 +
 +   Incrementer(Counter counter, long increment, int index) {
 +      this.increment = increment;
 +      this.counter = counter;
 +      this.index = index;
 +   }
 +
 +   public void run() {
 +      for (long i = 0; i < increment; i++) {
 +         if(i % (increment/10) == 0) println("Thread " + index + ": " + i);
 +         
 +         synchronized (counter) {
 +            long i = counter.counter;
 +            i++;
 +            counter.counter = i;
 +         }
 +         
 +      }
 +      println("Thread " + index + " done. Counter: " + counter.counter);
 +   }
 +
 +}
 +</script>
 +
 +</div>
 +
 +</HTML>
 +
  
api/documentation/threads/start.txt · Zuletzt geändert: 2025/03/05 10:26 von martin