第九周上机

package hhhhkj;

import java.util.Scanner;

public class kjklkjkj {

	public static void main(String[] args) {
		Point p1=new Point();
		p1.movepoint(1, 2);
		Point p2=new Point();
		p2.movepoint(3, 4);
    }
   
}
package hhhhkj;

public class Point {
	int x,y;
	public void movepoint(int dx,int dy){
		x+=dx+15;
		y+=dy+20;
		System.out.println("横坐标为"+x+"纵坐标为"+y);
		
	}

}

　　

 第二题

package hhhhkj;

import java.util.Scanner;

public class kjklkjkj {

	public static void main(String[] args) {
		Rectangle r=new Rectangle();
		r.showAll();
		
    }
   
}
	
		package hhhhkj;

public class Rectangle {
	double length=3;
    double width=4;
   public Rectangle(){
	   System.out.println("构造方法");
   }
    
    
    public void getArea() {
        double area=length*width;
        System.out.println("面积为"+area);
    }
    public void getPer() {
        double per= 2*(length+width);
        System.out.println("周长为"+per);
    }
    public void showAll() {
        System.out.println("长为"+length);
        System.out.println("宽为"+width);
        System.out.println("面积为"+length*width);
        System.out.println("周长为"+(length+width));
         
    }
}

　　

 

 

第三题

package hhhhkj;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		test1 r=new test1();
	    r.cpumodel=2;
	    r.colourname='红';
	    r.colour();
	    r.cpu();
		

	}

}
package hhhhkj;
 
public class test1 {
    char colourname;
    int cpumodel;
    public void colour(){
    System.out.println("颜色是"+colourname);
         
    }
    public void cpu(){
        System.out.println("型号是"+cpumodel);
    }
    public test1(){
    	System.out.println("无参构造");
    }
 
}

　　

 

 

第四题

 

package hhhhkj;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		 test1 r1=new test1();
	        test1 r2=new test1();
	        r1.height=1.73;
	        r1.name="zhangsan";
	        r1.weight=56.3;
	        r2.name="lishi";
	        r2.height=1.74;
	        r2.weight=78.4;
	        r1.sayhellow();
	        r1.hhhhh();
	        r2.sayhellow();
	        r2.hhhhh();
	    

	}

}
package hhhhkj;
 
public class test1 {
	
	    String name;
	    double height;
	    double weight;
	    public void sayhellow(){
	        System.out.println("hellow,my name is"+name);
	         
	    }
	    public void hhhhh(){
	        System.out.println("名字是"+name);
	        System.out.println("升高是"+height);
	        System.out.println("体重是"+weight);
	    }
	    public test1(){
	    	System.out.println("****88888");
	    }
	 
	}