Java入门, 泛型编程

package org.lxh.demo16.generics;

class Point<T> {
	private T x;
	private T y;
	
	public void setX(T x){
		this.x = x;
	}
	
	public void setY(T y){
		this.y = y;
	}
	
	public T getX(){
		return this.x;
	}
	
	public T getY(){
		return this.y;
	}
}


public class GenericsDemo {
	
	public static void main(String[] args){
		
		//Integer Point
		Point<Integer> p = new Point<Integer>();
		p.setX(23);
		p.setY(56);
		System.out.println("my point is: (" + p.getX() + "," + p.getY() + ")");
		
		//Bill Gates mansion
		Point<String> p2 = new Point<String>();
		p2.setX("47度37\'37.71\"N");
		p2.setY("122度14\'33.26\"W");
		System.out.println("Bill Gates mansion location at: (" + p2.getX() + "," + p2.getY() + ")");
		
	}

}
package org.lxh.demo16.generics;

class Point<T