1] Unzip the file SapanaSolution.zip. 2] copy. Unzipped file into eclipse Workspace. 3] Run Main.java file you will get the ouput on console and also in a file named Output.txt.

eg.Output:

cf0 Business & Finance >> Corporations >> Renting & Real Estate >> Other - Business & Finance >> Financial Planning >> Transcription services >> Insurance >> International Business and Operations >> General Management >> Translation services >> Credit & Debit >> Angels and Private Equity >> Mortgage and Loans >> Taxes >> Employment and labor issues >> Personal Finance >> Advertising & Marketing >> :- Conferences and marketing event management :- Online marketing/SEO/SEM :- Viral Marketing :- Guerilla marketing :- Traditional Marketing :- Public relations

    Stock trading and Investing >> 
    Business planning >> 
    Small Business >> 
    Careers & Employment services >> 
    Ecommerce  >> 
    Entrepreneurs >> 
    Accounting and Finance >>  

where cf0 Business & Finance : Primary Category Corporations >> Renting & Real Estate >> Other - Business & Finance >> . . . Accounting and Finance >> : these all are subcategories of cf0 Business & Finance (Primary Category)

  Advertising & Marketing  : subcategories of  cf0 Business & Finance (Primary Category).

  Advertising & Marketing >> :- Conferences and marketing event management
                 :- Online marketing/SEO/SEM
                 :- Viral Marketing
                 :- Guerilla marketing
                 :- Traditional Marketing
                 :- Public relations

                 these all are second-level subcategories.