Beginning of Java SE-Java program

Setting variables

The program installation directory is

C:\Program Files\java\jdk1.7.0_67\bin Advanced system settings, environment variable settings in; Add this location after the number

Directly verifies that the environment variable is configured successfully in CMD via Java command

Write a program

Class vardemo//defines classes {public static void main (string[] args)//define main function {System.out.println ("Hello World");//Output Hello World}}

Compile

D:\lab\java>javac 0908.java

Perform

D:\lab\java>java Vardemo
Hello World

http://blog.csdn.net/wangyang1354/article/details/9746979 reference algorithm can be seen later

This article is from "The Old artisan" blog, declined reprint!

Beginning of Java SE-Java program