Assignment 74 and Saferoot

Code

///Matthew Hughs
///Period 5
///Saferoot
///Saferoot.java
///12/28/2016


import java.util.Scanner;

public class Saferoot
{
	public static void main( String[] args )
	{
		Scanner keyboard = new Scanner(System.in);

		double a, b, c;
		String op;

		do
		{
			System.out.print("> ");
			a  = keyboard.nextDouble();
			op = keyboard.next();
			b  = keyboard.nextDouble();

			if ( op.equals("+") )
				c = a + b;
			else if (op.equals("-"))
                c = a - b;
            else if (op.equals("*"))
                c = a * b;
            else if (op.equals("/"))
                c = a / b;
            else 
			{
				System.out.println("Undefined operator: '" + op + "'.");
				c = 0;
			}

			System.out.println(c);

		} while ( a != 0 );
	}
}
    

Picture of the output