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javac is not displaying

Hi friends, in this image java is installed on my computer and when i use the " java -version " shows me the message diplayed in the image . But, when I use javac -version this show me error " not found " why is this so and how to properly set java on my computer so as to use this for my programming compiling and executing java files. Thanks in advance !!

I installed openjdk as well:

enter image description here

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1 Answer 1

If you see there ,you have installed Java Run time Environment which is actually needed to run Java based software in your system.

for example If you place java filename then it will execute that particular java file.

but javac belongs JDK which stands for Java development Kit , which you need If you would like to do programming on Java.

To get install Java for programming you can install openjdk-7-jdk with

sudo apt-get install openjdk-7-jdk
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@grv.giit friend Open JDK Runtime environment states that only . –  Raja Jan 1 '13 at 16:21
    
:- can i compile my java files by : javac <filename>.java now ?? –  grv.giit Jan 1 '13 at 16:27
    
If you got Java runtime environment then you can do only Java <filename>.If you would like to do javac <filename>.java then you have to install what i have mentioned in my answer. –  Raja Jan 1 '13 at 16:34
    
@grv.giit you see the comment. –  Raja Jan 1 '13 at 16:43
    
@snow- How do I compile when i have not set the path and classpath here .. please reply :) –  grv.giit Jan 1 '13 at 17:38

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