rectangle.java

来自「Java 程序设计源码 只提供了部分」· Java 代码 · 共 32 行

class Rectangle
{
	int l,w;
	
	int perimeter()
	{
		return 2 * (l + w);
	}
	
	int area()
	{
		return l * w;	
	}
	
	public static void main(String [] args)
	{
		Rectangle rect1 = new Rectangle();
		Rectangle rect2 = new Rectangle();
		
		rect1.l = 10;
		rect1.w = 5;
		
		System.out.println("perimeter of rect1 = " + rect1.perimeter());
		System.out.println("area of rect1 = " + rect1.area());
		
		rect2.l = 6;
		rect2.w = 4;
		
		System.out.println("perimeter of rect2 = " + rect2.perimeter());
		System.out.println("area of rect2 = " + rect2.area());
	}
}