Issues when changing the java version

[AbhayGoyal]

In the compile.sh file, the code written was javac does not contain the source or target java version. When I do mention them as follow :
javac -source 1.7 -target 1.7....., it shows me classpath error mentioning src is incorrect

This error does not show up when I do not mention the source and destination. But when I run the compile.sh as is, it says that the source should be 1.5 and above.

Could you please tell how I can fix it?

Thanks