Mac Java Hello

Ref : http://www.tutorialspoint.com/java/index.htm

Macbook pro (OS X EI Captian 10.11.5)

java 1.7.0_79

1. Prepare java code by 文字編輯器

// 1. Filename = class name

// 2. Prepare java code (filename name.java)

// 3. Command mode

// 3.1 Compile: javac name.java

// 3.2 Execute: java name(.class)

public class JavaHello {

    public static void main(String []args) {

       System.out.println("Hello World");

    }

} 

2. Compile:

javac JavaHello.java

3. Execute

java JavaHello

4. Result