java-learning/java-base/src/main/java/com/brianway/learning/java/base/generics/CreatorGeneric.java at master · JavaDevelopRep/java-learning

Repository navigation

package com.brianway.learning.java.base.generics;

/**

* 末班方法设计模式

public class CreatorGeneric {

public static void main(String[] args) {

Creator c = new Creator();

c.f();

}

abstract class GenericWithCreate<T> {

final T element;

GenericWithCreate() {

element = create();

}

abstract T create();

}

class X {

}

class Creator extends GenericWithCreate<X> {

X create() {

return new X();

}

void f() {

System.out.println(element.getClass().getSimpleName());

}

/* Output:

*///:~