我们将某些特定的逻辑处理编写为一个方法。其某些实现的操作由子类来实现

　　父类定义为抽象类  其中2个为抽象方法，意为由子类来实现  

父类

public abstract class TemplateDesgin {    public abstract void doAnything();    public abstract void doSomething();    public final void doTemplate(){        doAnything();        doSomething();    }}　

子类　　

public class Test extends TemplateDesgin {    @Override    public void doAnything() {        System.out.println("doAnything...");    }    @Override    public void doSomething() {        System.out.println("doSomething...");    }    public static void main(String[] args) {        Test test = new Test();        test.doTemplate();    }}

 

例如编写程序的计数耗时

父类

public abstract class TimeCounter {    public abstract void programe();    public final long timeCounterMethod(){        long startTime = System.currentTimeMillis();        programe();        long endTime = System.currentTimeMillis();        return (endTime-startTime);    }}

public class Time extends TimeCounter{    @Override    public void programe() {        for(int i=0;i<10000000;i++){            //System.out.print(i);        }    }    public static void main(String[] args) {        Time time = new Time();        System.out.println(time.timeCounterMethod());    }}