This com.github.gigagoex.exercises.Calculator allows simple arithmetic operations.

You can add, substract, multiply or divide two numbers. Enter the term you want to solve after the keyword calc. You need to enter it in single quotes. The allowed format is: 'Operand1 Operator Operand2' Whitespaces are ignored.

Examples for valid expressions are: '1+2' '3 / 4' '1.25 * 8' ' - 7 - 8' '4 / - 5' etc.

You can exit the program by entering 'stop' in the console.