Question

Write a program that accepts three decimal numbers as input and outputs their sum.

Answer 1

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Answer 2

★$\bf{\underline{Java::}}$

import java.util.Scanner; // Imports Scanner class.

public class Main { // Declares the class as public and names it Main.

  public static void main(String [] args) { // Main method.

     Scanner sc = new Scanner(System.in); // Scanner activation.

     System.out.println("Enter the three numbers : "); // Prints a string that asks for input.

     int num1 = sc.nextInt(); // Takes input in variable num1.

     int num2 = sc.nextInt(); // Takes input in variable num2.

     int num3 = sc.nextInt(); // Takes input in variable num3.

     System.out.println("The sum is " + (num1 + num2 + num3)); // Prints the result.

  }

}

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★$\bf{\underline{Python::}}$

num1 = int(input()) # Takes input in num1.

num2 = int(input()) # Takes input in num2.

num3 = int(input()) # Takes input in num3.

print("The sum is ", (num1 + num2 + num3)) # Adds them and prints the  result.

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★$\bf{\underline{C++::}}$

#include <iostream> // Includes the iostream header file.

using namespace std; // Using the standard namespace.

int main() { // Main method.

  int num1, num2, num3; // Declares three variables.

  cout << "Enter the numbers : " << endl; // Prints a string that asks for input.

  cin >> num1 >> num2 >> num3; // Takes input in  the declared variables.

  cout << "The sum is " << (num1 + num2 + num3); // Prints their sum.

  return 0; // The method returns 0;

}