Can you convert CC++ Code into Java, if so how??

Yes, study what the code is suppossed to do and then program it in Java. Simply "converting" it would only create a hack that would be far from effecient.

Yes, I can convert the "C" and "C++" code into "Java" language.

I had done work all these languages.And Now, I am working on a "University Library Management" project using "Java".

You can contact me at my email ID "connectajitarora@gmail.com"
and you can also call me at this number- "+919085233995"

so far the only way i know is rewriting the code in java. However, i have a suggestion. This will work if badly need to use the C++ code that you spent a lot of time developing. You can use the java native interface(JNI). This allows you to perform method calls to libraries in C++