第九周上机练习

Posted 2020-12-08 sehnsucht

package work;

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){
        System.out.println("移动前的坐标为:"+x+","+y);
        System.out.println("移动的量为:"+dx+" "+dy);
        this.x +=dx;
        this.y +=dy;
        System.out.println("移动后的坐标为:"+this.x+","+this.y);
    }
}

package work;

public class Test {

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

package work;

public class Rectangle {
    int length;
    int width;
    
    public Rectangle(int length,int width){
        this.length=length;
        this.width=width;
    }
    public int getArea(int length,int width){
        return this.length*this.width;
    }
    public int getPer(int length,int width){
        return (this.length+this.width)*2;
    }
    public void showAll(int length,int width){
        System.out.println("矩形的长为:"+length+"矩形的宽为:"+width);
        System.out.println("矩形的面积为:"+getArea(length,width));
        System.out.println("矩形的周长为:"+getPer(length,width));
    }
}

package work;

public class Test {

    public static void main(String[] args) {
        Rectangle r=new Rectangle(1,2);
        r.showAll(r.length, r.width);
    }
}

package work;

public class Notebook {
    private char color;
    private int cpu;
    
    public Notebook(){
        
    }
    public Notebook(char color,int cpu){
        this.color=color;
        this.cpu=cpu;
    }
    
    public char getColor(){
        return color;
    }
    public int getCpu(){
        return cpu;
    }
    
    public void setColor(char color){
        this.color=color;
    }
    public void setCpu(int cpu){
        this.cpu=cpu;
    }
    public void show(){
        System.out.println("笔记本电脑的颜色是:"+getColor()+"笔记本的cpu是:"+getCpu());
    }

}

package work;

public class Test {

    public static void main(String[] args) {
        Notebook n=new Notebook();
        n.show();
        
        Notebook n2=new Notebook(‘蓝‘,1);
        n2.show();    
    }
}