Write a program to takes two operands and one operator from the user, perform the operation, and prints the result by using Switch statement content1 in c, python,java

Algorithm

the algorithm to take two operands and one operator from the user, perform the operation using a switch statement, and print the result:

Prompt the user to enter the first operand and store it in a variable, let’s call it operand1.
Prompt the user to enter the second operand and store it in a variable, let’s call it operand2.
Prompt the user to enter the operator (+, -, *, /, %) and store it in a variable, let’s call it operator.
Initialize a variable, let’s call it result, to hold the calculated result.
Use a switch statement with the operator variable as the expression.
For each case in the switch statement, perform the corresponding operation based on the entered operator.
Store the result of the operation in the result variable.
Print the value of result as the calculated result.

Enter the first operand: 5
Enter the second operand: 3
Enter the operator (+, -, *, /, %): *

Step 1: operand1 = 5
Step 2: operand2 = 3
Step 3: operator = '*'
Step 4: Initialize result

Step 5: Evaluate the 'switch' statement with the 'operator' variable
   - Case '*':
     - Perform the multiplication: result = 5 * 3 = 15
     - Exit the 'switch' statement

Step 9: Print the value of result: 15

Output: The result is 15

C Program

#include <stdio.h>

int main() {
    float operand1, operand2;
    char operator;
    float result;

    printf("Enter the first operand: ");
    scanf("%f", &operand1);

    printf("Enter the second operand: ");
    scanf("%f", &operand2);

    printf("Enter the operator (+, -, *, /, %%): ");
    scanf(" %c", &operator);

    switch (operator) {
        case '+':
            result = operand1 + operand2;
            break;
        case '-':
            result = operand1 - operand2;
            break;
        case '*':
            result = operand1 * operand2;
            break;
        case '/':
            result = operand1 / operand2;
            break;
        case '%':
            result = (int)operand1 % (int)operand2;
            break;
        default:
            printf("Invalid operator\n");
            return 0;
    }

    printf("The result is: %.2f\n", result);

    return 0;
}

C++

#include <iostream>

using namespace std;

int main() {
    float operand1, operand2;
    char operator;
    float result;

    cout << "Enter the first operand: ";
    cin >> operand1;

    cout << "Enter the second operand: ";
    cin >> operand2;

    cout << "Enter the operator (+, -, *, /, %): ";
    cin >> operator;

    switch (operator) {
        case '+':
            result = operand1 + operand2;
            break;
        case '-':
            result = operand1 - operand2;
            break;
        case '*':
            result = operand1 * operand2;
            break;
        case '/':
            result = operand1 / operand2;
            break;
        case '%':
            result = (int)operand1 % (int)operand2;
            break;
        default:
            cout << "Invalid operator" << endl;
            return 0;
    }

    cout << "The result is: " << result << endl;

    return 0;
}

In both versions, the program takes two operands (operand1 and operand2) and an operator (operator) as inputs from the user. It then uses a switch statement to perform the desired operation based on the provided operator. The result is stored in the result variable and printed to the console.

Python

def calculate_result(operand1, operand2, operator):
    result = 0
    # Perform the operation based on the operator
    switch_operator = {
        '+': operand1 + operand2,
        '-': operand1 - operand2,
        '*': operand1 * operand2,
        '/': operand1 / operand2,
        '%': operand1 % operand2
    }
    result = switch_operator.get(operator, "Invalid operator")

    return result

# Take input from the user
operand1 = float(input("Enter the first operand: "))
operand2 = float(input("Enter the second operand: "))
operator = input("Enter the operator (+, -, *, /, %): ")

# Calculate and print the result
result = calculate_result(operand1, operand2, operator)
print("The result is:", result)

this program, the calculate_result function takes three inputs: operand1, operand2, and operator. It uses a dictionary called switch_operator to map each operator to its respective operation. The get method of the dictionary is used to fetch the value based on the provided operator. If the operator is not found in the dictionary, the program returns “Invalid operator”.

Java

import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);

        System.out.print("Enter the first operand: ");
        double operand1 = input.nextDouble();

        System.out.print("Enter the second operand: ");
        double operand2 = input.nextDouble();

        System.out.print("Enter the operator (+, -, *, /, %): ");
        char operator = input.next().charAt(0);

        double result;

        switch (operator) {
            case '+':
                result = operand1 + operand2;
                break;
            case '-':
                result = operand1 - operand2;
                break;
            case '*':
                result = operand1 * operand2;
                break;
            case '/':
                result = operand1 / operand2;
                break;
            case '%':
                result = operand1 % operand2;
                break;
            default:
                System.out.println("Invalid operator");
                return;
        }

        System.out.println("The result is: " + result);

        input.close();
    }
}

Table of Contents

Algorithm

C Program

C++

Python

Java

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