About Java (different tools or platforms with "Hello World")

The most common getting Started app for any programming language: Hello World

NetBeans and "Hello World"

before writing Java programs, be prepared:

• Java SE Development Kit 7
  Microsoft Windows, Solaris OS and Linux: & nbsp Java SE Download list
  Mac OS x: developer.apple.com

• NetBeans IDE
  for all platforms  netbeans IDE download list

Attached: NetBeans IDE can be used in a variety of programming languages, and can choose to support one language or all languages of the installation package

Create an App

• Create IDE Project
  do not consider configuration issues in command-line development

• Edit source file
  Create an IDE project, a basic source file is automatically created

• Compile source files
  Call the Javac compile command, generated by. java. class (bytecode file)
  JVM can parse. class file

• Run Project
  Invoke Java startup command, run project

1, the source file is a compilation unit. Compile the file to generate several bytecode files

2, see the Java White Paper

3. NetBeans Documentation

Windows and "Hello World"

If no IDE is applicable, the following tools need to be prepared:

• Java SE Download List

• Any editing Tool
  such as: notepad++, JBuilder, EditPlus and text editor

Create an App

• Create. java file
• edit. java file
• command line Javac compile. Java
• command-line Java to run the. class file

Report:
1. See the Java White Paper

Solaris OS and Linux and "Hello World"

similar to Windows and "Hello World"

difference:

• J2SE Download List
• Installation Instructions
• CMD to replace with terminal terminal
• Edit tool to replace with VI or Emacs

About Java (different tools or platforms with "Hello World")