定义
一个抽象类公开定义了执行它的方法的方式/模板。它的子类可以按需要重写方法实现，但调用将以抽象类中定义的方式进行。这种类型的设计模式属于行为型模式。
模板模式是基于继承的。
角色
抽象模板
具体实现
实例
创建一个抽象模板，它的模板方法用final修饰
public abstract class Game {
abstract void initialize();
abstract void startPlay();
abstract void endPlay();
public final void play(){
initialize();
startPlay();
endPlay();
}
}
创建具体实现类
public class Football extends Game {
@Override
void initialize() {
System.out.println("football game initialized, start playing");
}
@Override
void startPlay() {
System.out.println("football game started, enjoy the game");
}
@Override
void endPlay() {
System.out.println("football game finished!");
}
}
public class Basketball extends Game {
@Override
void initialize() {
System.out.println("basketball game initialized, start playing");
}
@Override
void startPlay() {
System.out.println("basketball game started, enjoy the game");
}
@Override
void endPlay() {
System.out.println("basketball game finished!");
}
}
调用模板方法
public class Test {
public static void main(String[] args) {
Game game = new Football();
game.play();
}
}
运行结果
football game initialized, start playing
football game started, enjoy the game
football game finished!
