Project 4

Code

    ///Name: Cody Swain
    ///Period: 6
    ///Project Name: project4
    ///File Name: project4.java
    ///Date: 5/9/16
    
    import java.util.Scanner;

    public class project4
    {
        public static void main( String[] args )
        {
            
            Scanner kb = new Scanner(System.in);
            double a, b, c=0.0;
            String op;
            
            System.out.println("Calculator Program" );
            System.out.println("Enter a calculation. ");
            
            do
            {
                System.out.print("> ");
                a = kb.nextDouble();
                op = kb.next();
                b = kb.nextDouble();
                
                if (op.equals("+"))
                    c = addition(a, b);
                else if (op.equals("*"))
                    c = multiplication(a, b);
                else if (op.equals("-"))
                    c = subtraction(a, b);
                else if (op.equals("/"))
                    c = division(a, b);
                else if (op.equals("^"))
                    c = exponent(a, b);
                else 
                    System.out.println("Error");
                    
                System.out.println( a + op + b + " equals " + c );
            }
            while (a != 0);
        }
        
        public static double addition( double a, double b )
        {
            double sum = a+b;
            return sum;
        }
        
        public static double multiplication( double a, double b )
        {
            double sum = a*b;
            return sum;
        }
        
        public static double subtraction( double a, double b )
        {
            double sum = a-b;
            return sum;
        }
        
        public static double division( double a, double b )
        {
            double sum = a/b;
            return sum;
        }
        
        public static double exponent( double a, double b )
        {
            double sum = Math.pow(a, b);
            return sum;
        
        }
    }           
                
        
    

Picture of the output