第十二次Java作业

package Zh123;

public class Point {
    int x;
    int y;

    public Point(int x0, int y0) {
        x = x0;
        y = y0;
    }

    public Point() {

    }

    public String movePoint(int dx, int dy) {
        x = x + dx;
        y = y + dy;
        return ("(x,y)" + "" + "("+x +","+ y+")");
    }

    public static void main(String[] args) {
        Point p1 = new Point(2, 5);
        Point p2 = new Point(3, 6);
        System.out.println("p2是" + p2.movePoint(1, 1));
        System.out.println("p1是" + p1.movePoint(5, 2));
    }

}

package Zh123;

public class Rectangle {
    int length;
    int width;

    public int getArea(int length, int width) {
        int Area;
        Area = length * width;
        return Area;
    }

    public int getPer(int length, int width) {
        int Per;
        Per = (length + width) * 2;
        return Per;
    }

    public void showAll() {
        System.out.println("长度是" + length + " " + " 宽度是" + width + " " + "周长是"
                + (length + width) * 2 + " " + "面积是" + length * width);
    }

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

    public static void main(String[] args) {
        Rectangle a = new Rectangle(5, 7);
        a.showAll();

    }

}

package Zh123;

public class Note {
      char color;
      int cpu;
      
      public Note(char color,int cpu){
          this.color =color;
          this.cpu=cpu;
      }
      public void show(){
          System.out.println("笔记本颜色是"+color+" "+"型号是"+cpu);
      }
    }

package Zh123;

public class NoteTest {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Note a1=new Note ('黑',2);
        Note a2=new Note('银',1);
        a1.show();
        a2.show();
    }

}