Here i am explaining convert cobol code to java code
Using Res can achive this
First download RES from
http://sourceforge.net/projects/opencobol2java/
After dowload UnZip the RES.zip file
After extracted the zip file then go to Cobol folder in this folder have the run.bat file.
copy the your cobol files to cobol folder
open run.bat file,copy this code java -jar ..\RES.jar -c3 -v -opt2 -dp1 -overwrite yourcobolfile >> $run.log 2>> $err.log
save the file
Run the run.bat file
you can see your class files in cobolprogramclasses folder orcoboldataclasses