无法安装Java JDK

Question

Ok, this is embarrassing, but I can't install Java. I have no experience in Java so any help appreciated.

So as ussual I install Java JDK (The JRE I think is already there before) I have jre7 and jdk1.8.0.0_05

I have install it, but Java still not in my computer

Here's some desperate cmd check

>C:\>WHERE java
>INFO: Could not find files for the giving pattern
>C:\>java
>'java is not recognized as an internal or external command, operable program or batch file.

Where my java folder is C:\\Program Files (x86)\\Java\\jdk1.8.0.0_5

On my desperation I created the variable JAVA_HOME on the given directory. Afterward, I tried this.

>C:\>echo %JAVA_HOME%

%JAVA_HOME%

I was expecting the cmd to echo the directory.

The variable PATHEXT has the following in it:

.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC

Clariffication:

I tried to reinstall the Java Jdk Installer with Windows Installer, but no luck.

If this matters, I'm running from Windows 7.

I tried to learn from Here

After closer inspection, I can run java and javac after going all the way into the directory (so inputing java outside the bin will do nothing good)

Answer 1

Add C:\\Program Files (x86)\\Java\\jdk1.8.0.0_5\\bin to your PATH variable

Here is how mine is

Answer 2

I think you may have not added JAVA_HOME environment variable, and/or to PATH environment variable neither.

Give a read to this article

http://www3.ntu.edu.sg/home/ehchua/programming/howto/jdk_howto.html

Answer 3

Regarding you last comment, i think you should put the java directory right infront of all the other directory because, if you were to install another version of java it might not be used if you place it behind.

(For Advanced Users Only) I suggested that you place the JDK bin directory in front of "c:\\windows\\system32" and "c:\\windows". This is because some Windows systems may have an out-dated copy of JDK/JRE in these directories. Do a search for "java.exe", and you will be amazed by the findings. You could read "Java Applications and Environment Variable" for more discussions about PATH environment variable. I also recommend that you define an environment variable called JAVA_HOME, which contains the JDK installed directory, and include the JDK bin directory in the PATH via JAVA_HOME, ie, PATH=%JAVA_HOME%\\bin;.....

Answer 4

Please see this video how to do it . https://youtu.be/-V5loLHifgU