Read the input from the scanner

Expressions should match the forms below. Note that you will need spaces between the numbers and operators for your scanner methods to work best.

o number1 operator number2

o operator number1

Declare number1 and number2 as type integer. Test using integer values.

You must support the following binary operations:

^ : exponent ( 3 ^ 2 means 3 raised to the 2^nd power

* : multiplication ( 3 * 2 means 3 multiplied by 2)

+ : addition (3 + 2 means 3 plus 2)

/ : division ( 3 / 2 means 3 divided by 2, * if you want a result with decimals you will need to cast one of the numbers to double)

You must support the following unary operations:

# : square root (# 5 means the square root of 5)

~ : absolute (~ -5 means the absolute value of -5)

Your program should display the result of evaluating the expression in an appropriate form. For instance, a square root should be a double or float.

Hints:

You can use nested if statements for all your logic, but you may want to consider a switch statement for your binary operations.

When you read from the scanner, read the next string then decide what to do, is it a #? Is it a ~? and so on. These checks may mean moving on to read the next piece of data as an integer and display the result, or moving on to do a binary operation.

Sample output:

Example 1:

Enter a math expression: ~ -75

The absolute value of -75 is: 75

Example 2:

Enter a math expression: # 50

The square root of 50 is 7.07

Example 3:

Enter a math expression: 3 * 4

The product of 3 and 4 is 12

Example 4:

Enter a math expression: 5 ^ 2

5 raised to the 2 power is 25