? Java Environment Building

1. Why build a Java environment

l  !--[Endif]-->java

l  !--[Endif]-->java ( java virtual machine) to write the programmer. Span style= "FONT-FAMILY:CALIBRI;" >java program running in operating system

l  java Program cross-platform (

2.  !--[Endif]--> How to build java environment

l  !--[Endif]--> download JVM Virtual machine ( JDK java

l  !--[Endif]--> config java environment variables (if you write java The program needs to be compiled and run manually, environment variables must be configured)

!--[if!supportlists]-->ø  !--[Endif]-->path: Configure the executable path

!--[if!supportlists]-->ø  !--[Endif]-->classpath: Specify

!--[if!supportlists]-->ø  !--[Endif]-->java_home installation path ( d:\java\jdk1.8.0_25 )

3. How the JVM works

4. Avoid environment configuration and quickly use Java Development tools (IDE: integrated development environment)

l  !--[Endif]-->eclipse: a process from compile to run through eclipse come on.

l  !--[Endif]--> Note: eclipse ( x86, x64 ) to run successfully requires attention and JVM version consistent

l  !--[Endif]-->eclipse JDK Span style= "font-family: the song Body;" > Key elements: Read jdk jvm.dll path

5. how Java works

Programmer write a Java source program ----------- bytecode -->jvm--> hardware platform (operating system)

1.  !--[Endif]--> Why build java environment

!--[if!supportlists]-->l  !--[Endif]-->java

!--[if!supportlists]-->l  !--[Endif]-->java ( java virtual machine) to write the programmer. Span style= "FONT-FAMILY:CALIBRI;" >java program running in operating system

Java programs across platforms (Mac, Linux, Windows)

? Java Environment Building