模板方法模式

模板方法模式，又称钩子函数

public abstract class banktemplate {

public void takeNumber(){
System.out.println("取号排队");
}

public abstract void doSomething();

public void evaluation() {
System.out.println("评价走人");
}

public final void startOperation() {
this.takeNumber();
this.doSomething();
this.evaluation();
}
}

public class persion extends banktemplate{
@Override
public void doSomething() {
System.out.println("取钱");
}
}

//两种调用方式

public class client {

public static void main(String[] args) {
banktemplate per = new persion();
per.startOperation();

banktemplate company = new banktemplate() {


@Override
public void doSomething() {
System.out.println("贷款");
}
};
company.startOperation();
};


}