I can\'t seem to not get errors when I try to create a program in Java that has

Question

I can't seem to not get errors when I try to create a program in Java that has the following functions:

add: which takes 2 input numbers and computes their sum

subtract: which takes 2 input numbers and performs their subtraction

multiply: which takes 2 input numbers and computes their product

divide: which takes 2 input numbers and performs their division

add3: which takes 3 input numbers and computes their sum

multiply3: which takes 3 input numbers and computes their product

All numbers can be considered doubles.

In the main program perform THREE mathematical equations using the above functions to demonstrate their use.

For example: double example1 = subtract(100, sum(multiply(2,4), divide(10,2) ) );

So create three equations (i.e. 3 lines of code) like the above.

Explanation / Answer

    import java.util.Scanner;

    public class Arithmatic

    {

        public static void main(String[] args)

        {

            int m, n, p, opt, add, sub, mul, add3, mul3;

            double div;

            Scanner s = new Scanner(System.in);

            System.out.print("Enter first number:");

            m = s.nextInt();

            System.out.print("Enter second number:");

            n = s.nextInt();
          
            System.out.print("Enter third number:");
      
            p = s.nextInt();

            while(true)

            {

                System.out.println("Enter 1 for addition");

                System.out.println("Enter 2 for subtraction");

                System.out.println("Enter 3 for multiplication");

                System.out.println("Enter 4 for division");
              
                System.out.println("Enter 5 for add 3 numbers");
              
                System.out.println("Enter 6 for multiply 3 numbers");

                System.out.println("Enter 7 to Exit");

                opt = s.nextInt();

                switch(opt)

                {

                    case 1:

                    add = m + n;

                    System.out.println("Result:"+add);

                    break;

                    case 2:

                    sub = m - n;

                    System.out.println("Result:"+sub);

                    break;

                    case 3:

                    mul = m * n;

                    System.out.println("Result:"+mul);

                    break;

                    case 4:

                    div = (double)m / n;

                    System.out.println("Result:"+div);

                    break;
                  
                  
                    case 5:
          
             add3 = m + n + p;
          
             System.out.println("Result:"+add3);
          
                    break;
                  
                  
                    case 6:
          
             mul3 = m * n * p;
          
            System.out.println("Result:"+mul3);
          
                    break;

                    case 7:

                    System.exit(0);

                }

            }

        }

    }

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.