super 与 this 关键字
public class SuperDemo { public static void main ( String [ ] args ) { new SubClass ( ) . showMessage ( ) ; } } class SuperClass { int i = 50 ; } class SubClass extends SuperClass { int i = 100 ; public void showMessage ( ) { System . out . printf ( " super.i = %d, this.i = %d \n " , super . i , this . i ) ; } }
输出结果为：
super.i = 50, this.i = 100