Programming Language Basics Crossword Puzzle

QUESTIONS LIST: variable : my value change from time to time, operator : helps to do calculations, function : call me any time to do a specific task, class : any number of instances can be created from me, object : my lifetime is sometimes short and sometimes long, but i can store data and perform tasks, interface : i am the face of any service, array : i store many data, but i cannot grow by myself, compiler : i convert program from one form to another, map: i store keys and values, stack : first in last out