Windows での JAVA_HOME 変数の設定

JAVA_HOME 変数を設定する

JAVA_HOME 変数を設定するには:

1. Find out where Java is installed. If you didn't change the path during installation, it will be something like this:
   C:\Program Files\Java\jdk1.8.0_65
2. In Windows 7 right click My Computer and select Properties > Advanced.
   In Windows 8 go to Control Panel > System > Advanced System Settings.
3. Click the Environment Variables button.
4. Under System Variables, click New.
5. In the Variable Name field, enter:
   • JAVA_HOME (JDK (Java 開発キット) をインストールしている場合)
     または
   • JRE_HOME: JRE (Java Runtime Environment) がインストールされている場合 

6. In the Variable Value field, enter your JDK or JRE installation path.

   If the path contains spaces, use the shortened path name, for example C:\Progra~1\Java\jdk1.8.0_65)
   
    

   64 ビットシステムの Windows ユーザー向け注記

   Progra~1 = 'Program Files'
   Progra~2 = 'Program Files(x86)'

7. Click OK and Apply Changes as prompted.

You'll need to close any re-open any command windows that were open before you made these changes as there's no way to reload environment variables from an active command prompt. If the changes don't take effect even after reopening the command window, restart Windows.