javac does not work in ubuntu terminal

Question

When I try to compile a java program with javac, I get an error:

The program \'javac\' can be found in the following packages:
 * default-jdk
 * ecj         


        

Answer 1

I have Ubuntu 12.10, with java "1.6.0_27", this command makes javac available:

sudo apt-get install default-jdk

Then compile it like this:

el@apollo:~/retreat3$ javac HelloWorld.java
el@apollo:~/retreat3$ java HelloWorld
Hello, World!