win7環境下配置Java環境

標籤：

==下載Java SE Development Kit 8u45==

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

==環境變數配置==

1 JAVA_HOME:C:\Program Files\Java\jdk1.8.0_45
2 PATH:%JAVA_HOME%/bin;%JAVA_HOME%/jre/bin3 CLASSPATH:.;%JAVA_HOME%/lib/dt.jar;%JAVA_HOME%/lib/tools.jar 

==helloworld==

建立D:\work\demo\javatest\HelloWorld.java，內容如下

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

==驗證==

開啟cmd、

cd D:\work\demo\javatest

>javac HelloWorld.java

沒有輸出為正確編譯

>java HelloWorld

Hello World!

==下載eclipse==

http://www.eclipse.org/

==注意點==

設定完環境變數，要重新開啟cmd，生效

 

win7環境下配置Java環境