Write some software

I need you to develop some software for me. I would like this software to be developed for Windows using Java. 1. Build a stand-alone Java based application which will – a. compare 2 text data files (can be CSV, TXT etc.), and  b. generate the detailed report of differences found, if any. 2. Target file (which is being compared) can have a different file structure than Source file (to which target file is compared). Column (aka Field) Names & Column (aka Field) Ordering will be different between Target and Source files. 3. Application should support comparison of target/source files with a file size of ~1 – 2 GB 4. Application should have the following tabs/modules to allow users to perform the corresponding activities – a. Define Source File Structure i. Allow user to Mark the Unique Fields in source file (the unique fields can be composite as well as single primary key) b. Define Target File Structure  i. Mark the Unique Fields in target file (the unique fields can be composite as well as single primary key)  c. Define Mapping between Source and Target d. Provide configurable values for –  i. Source File Record-level Delimiter  ii. Target File Record-level Delimiter  iii. Source File Column-level Delimiter iv. Target File Column-level Delimiter  e. Generate the difference report 5. Application should generate the difference report in Excel format (at least CSV format). 6. Application should compare the source and target files :  a. Record Count Difference  b. Field Value Differences in Source and Target files  c. Additional Records in Source and Target files d. Missing Records in Source and Target files