Java第十次作业

1.

package java10;

public class Point {


    int x;
    int y;
    public Point(){
        
    }
    public Point(int x0,int y0){
        this.x=x0;
        this.y=y0;
    }
    public void movePoint(int dx,int dy){
        x=x+dx;
        y=y+dy;
        System.out.println("移动后坐标:"+x+","+y);
    }
    public static void main(String[] args) {
        Point p1=new Point(1,2);
        Point p2=new Point(3,4);
        p1.movePoint(p2.x, p2.y);
    }
}

2.

package bbc;

public class Rectangle {

        int length;
        int width;
        Rectangle(int length,int width){
            this.length=length;
            this.width=width;
            
        }
        void showAll(){
            System.out.println("长是"+length+"宽是"+width);
        }
        void getPer(){
            System.out.println("周长"+2*(length+width));
        }
        void getArea(){
            System.out.println("面积"+length*width);
        }
        public static void main(String[] args) {
            Rectangle a=new Rectangle(2,3);
            a.getArea();
            a.getPer();
            a.getClass();
        }
    }

3.

package java10;


public class nextbook {

    char color;
    int cpu;
    public void show(){
        System.out.println("颜色："+color+"   型号："+cpu);
    }
    public  int cpu(){
        return cpu;
    }
    public  char color(){
        return color;
    }
}



package java10;

public class test1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        nextbook b=new nextbook();
        b.color='红';
        b.cpu=3;
        b.show();
    }