lay1.java~1~

《深入浅出设计模式》的完整源代码

package shallowvsdeep;

public class Lay1 implements Cloneable {
  public int x;
  public Lay2 lay2;
  public Object clone() {
    Lay1 clone = null;
    try {
      clone = (Lay1)super.clone ();
    }
    catch (CloneNotSupportedException e) {
      // should never happen
    }
    return clone;
  }
}