java 自增自减运算符的应用

源程序：

public class Test{

 public static void main(String args[]){

  int x , y , a , b ;

  x = 3 ;

  y = 3 ;

  a = 6 ;

  b = 6 ;

  System.out.println("x = " + x)
;

  System.out.println("\t x++ = "
+ (x++) + "\t x = " + x) ;

  System.out.println("y = " + y)
;

  System.out.println("\t ++y = "
+ (++y) + "\t y = " + y) ;

  System.out.println("a = " + a)
;

  System.out.println("\t a-- = "
+ (a--) + "\t a = " + a) ;

  System.out.println("b = " + b)
;

  System.out.println("\t --b = "
+ (--b) + "\t x = " + b) ;

 }

}

运行结果：