Discrete java mini project

Write a program that accepts 3 inputs: number, from_base, and to_base. Output the number expressed in base to_base. The value of the number 111 depends on the base it is expressed in. If the base is 10 (decimal) then it is one hundred and eleven, if it is binary, then the number is 7, and if it is base = 3, then the number is 1 + 1*3 + 1*32 = 13. In general, let b be an integer greater than 1. Then if n is a positive integer, it can be expressed uniquely in the form, 2 0 1 2 0 k k i k i i n a ab ab ab ab = = + + +