Make sure to download these from here:

Also create PATH enviroment variable on you computer like this (if it doesn't exist already):
- Right click on My Computer/Computer
- Properties
- Advanced system settings (or just Advanced)
- Enviroment variables
- If
PATH variable doesn't exist among "User variables" click New (Variable name: PATH, Variable value : C:\Program Files\Java\jdk1.8.0\bin; <-- please check out the right version, this may differ as Oracle keeps updating Java). ; in the end enables assignment of multiple values to PATH variable.
- Click OK! Done

To be sure that everything works, open CMD Prompt and type: java -version to check for Java version and javac to be sure that compiler responds.

I hope this helps. Good luck!