Infosys Software Engineer(Internship) interview questions

What is inheritance? What is lambda? If you had to make x and y different numbers than what they originally were, what is the process you would use? (for example, x starts at 3 and y starts at 5 but we want to make x 9 and y 10) ((easy -- either rename the variables or implement a counter with dependence on what the question asks for)) What is abstraction? What is the major difference between C and Java? C and Python?