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int x, z = 10;
System.out.println(x = z++); //10
System.out.println("x = " + x + "   z = " + z); //x = 10   z = 11
System.out.println(z = ++x); //11
System.out.println("x = " + x + "   z = " + z); //x = 11   z = 11
System.out.println(x += ++z); //23
System.out.println("x = " + x + "   z = " + z); //x = 23   z = 12
System.out.println(z += x++); //35
System.out.println("x = " + x + "   z = " + z); //x = 24   z = 35

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int a=42; 
System.out.println("Postinkrement: ".(a++));
int b=42;
System.out.println("Präinkrement: ".(++b));