通用运动3

package test.arithmetic;

public class Arithmetic1 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Point<Long> p=new Point<Long>();
		p.setX(180l);
		p.setY(10l);
		Point<Integer> p2=new Point<Integer>();
		p2.setX(120);
		p2.setY(20);
		print(p);
		print(p2);
		/**
x坐标:180 	 y坐标:10 	 类型:class java.lang.Long
x坐标:120 	 y坐标:20 	 类型:class java.lang.Integer
		 */
	}
	
	public static  void print(Point<? extends Number> p){
		System.out.println(p);
	}
	
}

class Point<T extends Number>{
	private T x;
	private T y;

	public T getX() {
		return x;
	}
	public void setX(T x) {
		this.x = x;
	}
	public T getY() {
		return y;
	}
	public void setY(T y) {
		this.y = y;
	}
	@Override
	public String toString() {
		return "x坐标:"+x+" 	 y坐标:"+y+" 	 种类:"+x.getClass();
	}
}