OnJava8-Examples/operators/AutoInc.java

// operators/AutoInc.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Demonstrates the ++ and -- operators

public class AutoInc {
  public static void main(String[] args) {
    int i = 1;
    System.out.println("i : " + i);
    System.out.println("++i : " + ++i); // Pre-increment
    System.out.println("i++ : " + i++); // Post-increment
    System.out.println("i : " + i);
    System.out.println("--i : " + --i); // Pre-decrement
    System.out.println("i-- : " + i--); // Post-decrement
    System.out.println("i : " + i);
  }
}
/* Output:
i : 1
++i : 2
i++ : 2
i : 3
--i : 2
i-- : 2
i : 1
*/