设计模式 - 创建型模式 - 原型模式

浅度克隆

class ConcretePrototype implements Cloneable {
......
public ConcretePrototype clone() {
Object object = null;
try {
object = super.clone();
} catch (CloneNotSupportedException exception) {
System.err.println("Not support cloneable");
}
return (ConcretePrototype) object;
}
......
}

深度克隆

class WeeklyLog implements Serializable {
//使用序列化技术实现深克隆
public WeeklyLog deepClone() throws IOException, ClassNotFoundException, OptionalDataException {
//将对象写入流中
ByteArrayOutputStream bao = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bao);
oos.writeObject(this);
//将对象从流中取出
ByteArrayInputStream bis = new ByteArrayInputStream(bao.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
return (WeeklyLog) ois.readObject();
}
}