Java or C++

Build a Calculator

For this project, you will build a working four-function calculator using basic logic gates. First, take a look at this adder. http://www.instructables.com/id/4-Bit-Binary-Adder-Mini-Calculator

Your job is to extend this to a full four-function calculator. The user will input two 4-bit integers and decide whether to add, subtract, multiply or divide them. Your circuit will perform the desired calculation and output the correct answer. (Note you will need up to 8 bits for your output).