?? user.java
字號:
package com.javapatterns.memento.wideandnarrow2;
public class User
{
class ConcreteClass implements Narrow
{
private void operation1()
{
System.out.println("operation1()");
}
private void operation2()
{
System.out.println("operation2()");
}
}
public Narrow getConcreteClass()
{
return (Narrow) new ConcreteClass();
}
}
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