abtest.java

java课件 java课件 java课件 java课件

class AB{
  private int a , b ;	
  public void init(int x){
    a = x ;
    int b = 5 ;  // 局部变量b隐藏了成员变量b
    System.out.println("a = "+a+"  b = "+b); 
    //System.out.println("a = "+this.a+"  b = "+this.b);
  }
  public void show(){
     System.out.println("a = "+a+"  b = "+b);
  }
}
public class ABTest{
  public static void main(String args[]){
    AB ab = new AB();
    ab.show(); 
    ab.init(6); 
    ab.show() ; 
  }
}