Tekkit classic server wont Launch?

[cyclops29]

Hi my name is Cj and i was searching threw mod packs to come across you can make your own..
I was interested and wanted to make one my self but when i downloaded it and extracted the files into my folder
And double clicked "launch" it said  "java is not recognized as an internal or external command,
operable program or batch file"
 
P.S i have looked everywhere with no solution

PLEASE HELP

[Myn4meisp4ul]

Skype me search Paul Cseley and i have the picture of a pig and i had the same problem and i fixed it!