Java 里面实现Prototype

使用Cloneable接口

package prototype.pattern;import java.util.Date;/** *  * @author Real H LI * */public class Prototype implements Cloneable {	private Date date;	private String dateStr;	private String ID;		public Prototype(){		this.date=new Date();		this.dateStr=date.toString();		setID("YYYYYYY");	}		@Override	protected Object clone() throws CloneNotSupportedException {		// TODO Auto-generated method stub		try {			return this.getClass().newInstance();		} catch (IllegalAccessException e) {			// TODO Auto-generated catch block			e.printStackTrace();			return null;		} catch (InstantiationException e) {			// TODO Auto-generated catch block			e.printStackTrace();			return null;		}	}	public String getDateStr() {		return dateStr;	}	public void setID(String iD) {		ID = iD;	}	public String getID() {		return ID;	}		}

package prototype.pattern;/** *  * @author Real H LI * */public class PrototypePattern {	/**	 * @param args	 */	public static void main(String[] args) {		// TODO Auto-generated method stub		Prototype prototype = new Prototype();		System.out.println(prototype.getDateStr());		System.out.println("-------------------------------");		Prototype temp;		try {			for (int i = 0; i < 10; i++) {				temp = (Prototype) prototype.clone();				System.out.println(temp.getDateStr());				temp.setID(String.valueOf(i));			}		} catch (CloneNotSupportedException e) {			// TODO Auto-generated catch block			e.printStackTrace();		}		System.out.println("-------------------------------");		System.out.println(prototype.getID());			}}