Lesson: The "Hello World!" Application

( http://docs.oracle.com/javase/tutorial/getStarted/cupojava/index.html )






class HelloWorldApp {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}

D:\Java\Work\pp003>java -version
java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

D:\Java\Work\pp003>dir

2013-08-06  오전 11:04    <DIR>          .
2013-08-06  오전 11:04    <DIR>          ..
2013-08-06  오전 11:04               116 HelloWorldApp.java


D:\Java\Work\pp003>javac HelloWorldApp.java

D:\Java\Work\pp003>dir

2013-08-06  오전 11:04    <DIR>          .
2013-08-06  오전 11:04    <DIR>          ..
2013-08-06  오전 11:04               432 HelloWorldApp.class
2013-08-06  오전 11:04               116 HelloWorldApp.java


D:\Java\Work\pp003>java HelloWorldApp
Hello World!