jdk配置

一.下载jdk

https://www.oracle.com/java/technologies/downloads/

二. 配置环境变量

在我的电脑—》属性—》环境变量

  1. JAVA_HOME=d:\usr\local\jdk1.8.0
  2. Path增加java执行路径

%JAVA_HOME%\bin

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java示例程序

程序名保存为Test.java

  1. public class Test {
  2.     public static void main(String[] args){
  3.         System.out.println("Hello world!\n");
  4.     }
  5. }

开发工具

editplus

  1. 在editplus添加用户工具，javac是java程序编译工具

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2.增加java运行工具
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保存后，打开java文件，按ctl+1 编译java程序，
按catl+2，执行java程序

idea

下载idea2018.3版本，并安装
在hosts文件增加以下行
0.0.0.0 account.jetbrains.com
启动idea输入下面的激活码

  1. 6ZUMD7WWWU-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-Gd8RATyTEnHcAydKuC7N1ZdeLaMP9IR+nlPyVxvLsczAUTGKxcuAYbfz/uVtepg8ey4NfJlPNS+AGcGz8x7ImkX9jEV9KElMxPu3tKSdF/WKo6JCONX7UtudYa/9EQum3banxci/qH7jejSrFZSN+YjWQiYTR0Q8gq4/a2RyQTgseZfpImY/nXkOWLwWArr/p+4ddp/bWQN4nLTW+Z4ZaQeLE96Z9viCdn62EKOcR02Hfr9Oju9VYQh1L8pGrTqNey5nUSv/LQUbVwo5qoYbBRos8l6ewkFNGsuC3vtOgGWSgkgChbDjWhW4Nkm4vDM2NFAphMsS1dgyPw3eJ3C+6A==-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

启动idea，新建项目，选择jdk目录
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资源目录
链接：https://pan.baidu.com/s/198bZHeQS2o17p5oa8exSNA
提取码：java