chap4-1.txt

JAVA 学习资源

// 程序4-1
class  point {   
    int  x , y;  

    void  init(int a, int b ){    // init是方法
        x=a;   y=b;
    }  
}

public  class twoPoint{
    public static void main(String  [ ]args){
        point  p1= new point ( ); 
        point  p2= new point ( );  	// 生成了p1和p2两个对象

        p1.x=10;
        p1.y=20;
        p2.x=30;
        p2.y=40;
        System.out.println("x = "+ p1.x +"  y= "+p1.y);
        System.out.println("x = "+ p2.x +"  y= "+p2.y);
    }
}