第九周上机 张垚

 1. package er;

public class point {
	 int x;
	    int y;
	    point() {
	               
	    }
	    point(int dx,int dy) {
	        x+=dx;
	        y+=dy;
	               
	    }
	    void movepoint(int p1,int p2) {            
	        p1=x*2;
	        p2=y*2;
	        System.out.println("p1的坐标为"+p1+"\n"+"p2的坐标为"+p2);              
	    }
}   
	 
package er;

public class person {
	public static void main(String[] args) {
        point p=new point();
        p.x=6;
        p.y=2;
       p.movepoint(p.x,p.y);
 }
}

　　2.

package er;

public class point {
	int length;
	int width;

	point(int width, int length) {
		this.width = width;
		this.length = length;
	}

	void getArea() {
		System.err.println("面积："+width*length);
	}

	void getPer() {
		System.out.println("周长："+(width+length)*2);
	}

	void showAll() {
		System.out.println("长："+length+"  宽:"+width);
	}
	public static void main(String[] args) {
		point a = new point(2, 5);
		a.getArea();
		a.getPer();
		a.showAll();
		
	}
}

　　3.

package er;

public class point {
		
		char color;
		int cpu;

	    point() {
	   }
	     point(char color, int cpu) {
			this.color = color;
			this.cpu = cpu;
		}

	    void point() {
			System.out.println("颜色:"+color);
			System.out.println( "型号:"+cpu);
		}
	public static void main(String[] args) {
		point p= new point('p',4689);
		p.point();
	   }
	}

　　4.

package test;

public class person {
	 String name;
	    double height;
	    int age;
	     
	    public void sayHello(){
	     System.out.println("hello,my name is " + this.name );
	    }
	    public void Value(String name, int age, double height){
	     this.name = name;
	     this.age = age;
	     this.height = height;
	    }
	       
	}
package test;

public class personcreate {
	public static void main(String[] args) {
        // TODO Auto-generated method stub
        person p1 = new  person();
        p1.Value("zhangsan",33,1.74);
        p1.sayHello();
        person p2 = new  person();
        p2.Value("lishi",44,1.74);
        p2.sayHello();
 }
}