Question

Write an application that solicits and inputs three integers from the user and then displays the sum, average, product, smallest, and largest of the three numbers. You may use any Java input and output method you want, for example the JOptionPane class or the Scanner class.

Answer 1

Please find below program

Step-by-step explanation:

import java.util.Scanner;

public class Tester {

public static void main(String[] args) {

// create an object of scanner class

Scanner scanner = new Scanner(System.in);

//prompt user to enter first number

System.out.println("Enter first integer: ");

// read value from entered by user and keep it in num1

int num1 = scanner.nextInt();

//prompt user to enter second number

System.out.println("Enter second integer: ");

// read value from entered by user and keep it in num2

int num2 = scanner.nextInt();

//prompt user to enter third number

System.out.println("Enter third integer: ");

// read value from entered by user and keep it in num3

int num3 = scanner.nextInt();

//close scanner as we have done with user input

scanner.close();

//calculate sum

int sum = num1+num2+num3;

//calculate average

int average = sum/3;

//calculate product

int product = num1*num2*num3;

//find out largest number

int largest = 0;

if (num1>=num2){

if(num1>=num3)

largest = num1;

else

largest = num3;

}else {

if(num2>=num3)

largest = num2;

else

largest = num3;

}

// find out smallest number

int smallest = 0;

if (num1<=num2){

if(num1<=num3)

smallest = num1;

else

smallest = num3;

}else {

if(num2<=num3)

smallest = num2;

else

smallest = num3;

}

// print all the information

System.out.println("Sum of three numbers : "+sum);

System.out.println("Product of three numbers : "+product);

System.out.println("Average of three numbers : "+average);

System.out.println("Smallest number : "+smallest);

System.out.println("Largest number : "+largest);

}

}