added ws202425 courses

2024_Praxis_der_Programmierung/ue8/Static.java

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+/** Static.java
+ *  
+ *  Eine Klasse, die Effekte mit Klassenvariablen demonstriert.
+ */
+
+class Static {
+
+  int n;
+  static int snum;
+
+  void increase() {
+    n++;
+    snum++;
+  }
+
+  void output() {
+    System.out.println("n = " + n + ", snum = " +snum);
+  }
+
+  static void set(int n) {
+    snum = n;
+  }
+
+
+
+
+  public static void main(String[] args) {
+
+    Static ex1 = new Static();
+    Static ex2 = new Static();
+
+    ex1.output();
+    ex2.output();
+    System.out.println();
+
+    ex1.increase();
+
+    ex1.output();
+    ex2.output();
+
+    set(5);		// Aufruf statische Methode; alternativ: Static.set(5);
+    Static ex3 = new Static();
+
+    System.out.println();
+    ex1.output();
+    ex2.output();
+    ex3.output();
+  }
+}
+
+// Static
+
+
+
+