testrectangle.java

我在学习JAVA的讲义

class Rectangle{
	private int width, height;
	public void setWidth(int w) {
		width = w;
	}
	public void setHeight(int h) {
		height = h;
	}
		
	public int getArea() {
		return width * height;
	}
	public int getPerimenter() {
		return 2 * (width + height);
	}
	public int getWidth() {
		return width;
	}
	public int getHeight() {
		return height;
	}	
}

public class TestRectangle {
	public static void main(String[] args) {
		Rectangle r1 = new Rectangle();
		r1.setWidth(10);
		r1.setHeight(15);
		System.out.println("Width = " + r1.getWidth());
		System.out.println("Height = " + r1.getHeight());
		System.out.println("Area = " + r1.getArea());
		System.out.println("Perimenter = " + r1.getPerimenter());
	}
}