最简单的框架

框架层代码：

package com.gmail.dailyefforts.framework;public abstract class AbstractClass {public void callOnDoSth() {onDoSth();}protected abstract void onDoSth();}

package com.gmail.dailyefforts.framework;import com.gmail.dailyefforts.client.ClientClass;public class Main {public static void main(String[] args) {AbstractClass cls = new ClientClass();cls.callOnDoSth();}}

应用层代码：

package com.gmail.dailyefforts.client;import com.gmail.dailyefforts.framework.AbstractClass;public class ClientClass extends AbstractClass {@Overrideprotected void onDoSth() {System.out.println("ClientClass.onDoSth()");}}