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() + ")");
    
  }

}