Guys one of the useful site for young coders
https://www.codecademy.com/learn

 I am in b.tech third year .....
and started feeling responsible about my career..as a part started learning java.....though I am maintaining a healthy percentage of 85% ...and also I am in one of the safest colleges for placements.... 
iam just in a dilemma whether to go for a job of software or core.....let me wait and see....