#IAction.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
public interface IAction {
    void sleeping();
    void running();
}

#IMessage.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
@FunctionalInterface
public interface IMessage {
    void showMsg(String msg);
}

#IRunning.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
public interface IRunning {
    void onRunning();
}

#Main.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
public class Main {
    public static void main(String[] args) throws Exception {
        String str = "Aptech 285 Doi Can";
//        String s1 = new String("Xin Chao");
//        str += "asd";

        StringBuilder builder = new StringBuilder();
        builder.append("Vi du 1");
        builder.append("Vi du 2");
        builder.append("Vi du 3");
        builder.append("Vi du 4");
        builder.append("Vi du 5");
        
        System.out.println(builder.toString());
        
        StringBuffer buffer = new StringBuffer();
        buffer.append("ABC");
        buffer.append("ABC");
        buffer.append("ABC");
        buffer.append("ABC");
        buffer.append("ABC");
        System.out.println(buffer.toString());
        
        int x = 5, y = 0;
        
        try {
            int z = x/y;
            System.out.println("z = " + z);
        } catch(Exception e) {
            e.printStackTrace();
        }
        
        throw new Exception("asdsadad");
    }
}

#People.java

/*
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 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
public class People implements IRunning{

    @Override
    public void onRunning() {
        System.out.println("People is running ...");
    }
    
}

#Test.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package com.gokisoft.lesson06;

/**
 *
 * @author diepvan
 */
public class Test {
    public static void main(String[] args) {
        People p = new People();
        p.onRunning();
        
        IRunning r = new IRunning() {
            @Override
            public void onRunning() {
                System.out.println("S is running");
            }
        };
        r.onRunning();
        
        IAction a = new IAction() {
            @Override
            public void sleeping() {
                System.out.println("Sleeping ...");
            }

            @Override
            public void running() {
                System.out.println("Running ...");
            }
        };
        a.running();
        a.sleeping();
        
        //Lambda
        IRunning r1 = () -> {
            System.out.println("S is running");
        };
        r1.onRunning();
        
        
        IRunning r2 = () -> System.out.println("S is running");
        r2.onRunning();
        
        IMessage m = (String msg) -> {
            System.out.println("Hello > " + msg);
        };
        m.showMsg("ABC");
        
        IMessage m2 = (msg) -> {
            System.out.println("Hello > " + msg);
        };
        m2.showMsg("ABC");
        
    }
}