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// interfaces/Machine.java
// (c)2020 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
import java.util.*;
class Bing implements Operations {
public void execute() {
Operations.show("Bing");
}
}
class Crack implements Operations {
public void execute() {
Operations.show("Crack");
}
}
class Twist implements Operations {
public void execute() {
Operations.show("Twist");
}
}
public class Machine {
public static void main(String[] args) {
Operations.runOps(
new Bing(), new Crack(), new Twist());
}
}
/* Output:
Bing
Crack
Twist
self-note: 这是模板方法设计模式的一个版本（在“设计模式”一章中详细描述），runOps() 是一个模板方法。
runOps() 使用可变参数列表，因而我们可以传入任意多的 Operation 参数并按顺序运行它们：
*/