Both C and Java are one of the most used languages nowadays. Learning them as one of your first languages is a very good first step towards the coding world. I am currently doing my Bachelor in Computer Science at the University of TUM and already have experience on both languages. I will be able to teach you all the basics that you will need to advance forward and be able to create simple to mid-level program. Afterwards you will then be able to continue on your own to further your programming skills.