I need to create a calculator class that reads from a .txt file ad produces the operands and numbers in the file. For example if the .txt file has "2 8 +" then the calculator class needs to read thsat file and produce an output like "2 + 8 = 10". This class needs a driver class as well. So in total i need a: .txt file, calculator.java , calculatorDriver.java. I will have a UMF diagram at the bottom showing what i need in the code. Also what I have learned about using a file is "file f = new file ("example.txt")", then "Scanner input = new Scanner (f)" Thank you!

Calculator int op1 int op2 -char operation +galculator (int op1, int op2, char operation) accessor +mutator +equals +ToString +add +subtract +Divide +multiplv. +remainder +Absolute value