Java/07-Java-Programs/048-Decimal-to-Binary.java at main · shaikbasha-dev/Java · GitHub

History

97 lines (72 loc) · 2.98 KB

Raw

* ============================================================================

* Program Name : Decimal to Binary

* File Name : 048-Decimal-to-Binary.java

* Class Name : DecimalToBinary

* Description:

* This program accepts a decimal number from the user and converts

* it into its binary equivalent.

* Objective:

* - Understand user input using the Scanner class.

* - Learn how to convert decimal numbers to binary.

* - Practice using the while loop and arithmetic operators.

* Author : Shaik Mahaboob Basha

* Repository : 01-Core-Java

* Folder : 08-Java-Programs

* ============================================================================

import java.util.Scanner;

public class DecimalToBinary {

// The main() method is the entry point of every Java application.

public static void main(String[] args) {

// Create a Scanner object to read input from the keyboard.

Scanner scanner = new Scanner(System.in);

// Ask the user to enter a decimal number.

System.out.print("Enter a Decimal Number: ");

// Read the decimal number entered by the user.

int decimalNumber = scanner.nextInt();

// Check whether the entered number is valid.

if (decimalNumber < 0) {

// Display an error message for negative numbers.

System.out.println("Please enter a non-negative integer.");

// Example Output:

// Please enter a non-negative integer.

} else if (decimalNumber == 0) {

// Display the binary value of zero.

System.out.println("Binary Number: 0");

// Example Output:

// Binary Number: 0

} else {

// Store the original decimal number.

int originalNumber = decimalNumber;

// Declare and initialize a variable to store the binary number.

long binaryNumber = 0;

// Declare and initialize the place value.

long placeValue = 1;

// Convert the decimal number into binary.

while (decimalNumber != 0) {

// Find the remainder after dividing by 2.

int remainder = decimalNumber % 2;

// Build the binary number.

binaryNumber = binaryNumber + (remainder * placeValue);

// Update the place value.

placeValue = placeValue * 10;

// Divide the decimal number by 2.

decimalNumber = decimalNumber / 2;

}

// Display the original decimal number.

System.out.println("Decimal Number: " + originalNumber);

// Display the binary equivalent.

System.out.println("Binary Number : " + binaryNumber);

// Example Output:

// Enter a Decimal Number: 25

// Decimal Number: 25

// Binary Number : 11001

}

// Close the Scanner object to release system resources.

scanner.close();

}

Java/07-Java-Programs/048-Decimal-to-Binary.java at main · shaikbasha-dev/Java · GitHub

Expand file tree

Breadcrumbs

048-Decimal-to-Binary.java

Latest commit

History

Breadcrumbs

048-Decimal-to-Binary.java

File metadata and controls