jieguo.java

来自「java编写的小程序」· Java 代码 · 共 50 行

import java.lang.*;
import javax.swing.*;
class  Rectangle
{
	private int mLength;
	private  int mWidth;
    public void setLength(int Length)
	{this.mLength=Length;}
	public int getLength()
	{return mLength;}
    public void setWidth(int Width)
	{this.mWidth=Width;}
	public int getWidth()
	{return mWidth;}
   Rectangle()
	{ mLength=1;
      mWidth=1;
	}
   Rectangle(int a ,int b)
	{ mLength=a;
      mWidth=b;
	}
	int Perimeter()
	{  return 2*(mLength+mWidth);}
    int Area()
	{ return mLength*mWidth;}
	public void  show()
	{ System.out.println("矩形长为："+mLength);
	  System.out.println("矩形宽为："+mWidth);
	}
}
class Jieguo
{ public static void main(String[] args) 
	  {
		int p,a;
       Rectangle  Rectangle1 =new Rectangle(4,7);
       Rectangle  Rectangle2 =new Rectangle(2,8);
	   p=Rectangle1.Perimeter();
	   a=Rectangle1.Area();
       Rectangle1.show();
	   System.out.println("Rectangle1的周长是："+p);
       System.out.println("Rectangle1的面积是："+ a);
       p=Rectangle2.Perimeter();
	   a=Rectangle2.Area();
      Rectangle2.show();
	   System.out.println("Rectangle2的周长是："+p);
       System.out.println("Rectangle2的面积是："+ a);
	   }
}