25. The synchronized methods example

• 
      public class SynchronizedCounter {
          private int value = 0;
          public
              synchronized
              void increment() {
                  ++value;
              }
          public
              synchronized
              void decrement() {
                  --value;
              }
          public
              synchronized
              int getValue() {
                  return value;
              }
      }//class SynchronizedCounter