adruta,
You might want to look at storing your strings in a resource file. Then you just make a different resource file for each language, and link to the desired resource file for each different language version.
For a slightly more advanced trick, you could use late binding to pick the language at runtime and load it from the resource file.
Another popular alternative from the UNIX world is to keep the strings in a text file, with a different file for each language. It simulates the late biding trick, with possibly a little less program complexity.