Question

1) Create an interface to the keyboard (Scanner). Scanner is described in Chapter 2.

2) Prompt the user to enter their first and last name..

3) Read the name into a String.

4) Print a person greeting such as “Hello FirstName LastName”. Print the users name in the greeting.

5) Prompt the user to enter 2 integers.

6) Read the integers into 2 variables into your program.

7) Prompt the user to enter a math operation – one of +,-,*,/

8) Calculate a number in your program using the 2 variables and the operation. You will need either an if statement or switch statement to do this (recommend: if statement).

9) Print the result of the calculation as an equation (showing both numbers, the operation, an equal sign and the result of the operation).

10) Print a personalized goodbye message such as “Bye FirstName LastName”. Print the users name in the message.

Answer 1

Since you have not mentioned the language of your preference, I am providing the code in Java.

CODE

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

String name;

System.out.println("Enter your first name and last name: ");

name = sc.nextLine();

System.out.println("Hello " + name);

int a, b;

System.out.println("Enter two integers: ");

a = sc.nextInt();

b = sc.nextInt();

System.out.println("Enter an operation among +,-,*,/ : ");

char op = sc.next().charAt(0);

int result = 0;

switch (op) {

case '+':

result = a + b;

break;

case '-':

result = a - b;

break;

case '*':

result = a * b;

break;

case '/':

result = a/b;

break;

default:

System.out.println("Invalid operation!!");

}

System.out.printf("%d %c %d = %d\n", a, op, b, result);

System.out.println("Bye " + name);

}

}