In this program, we are going to share Java program to **convert decimal number to binary** with the output. If you are a Java beginner and want to start learning the Java programming, then keep your close attention in this tutorial as I am going to share how to write a **Java program to convert a decimal number to binary**.

Copy the below Java program and execute it with the help of Javac compiler. At the end of this program, We have shared the output of this program.

Java

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public class DecimalBinaryProgram { public static void main(String[] args) { int num = 5; long binary = convertDecimalToBinary(num); System.out.printf("%d in decimal = %d in binary", num, binary); } public static long convertDecimalToBinary(int n) { long binaryNumber = 0; int remainder, i = 1, step = 1; while (n!=0) { remainder = n % 2; System.out.printf("Step %d: %d/2, Remainder = %d, Quotient = %d\n", step++, n, remainder, n/2); n /= 2; binaryNumber += remainder * i; i *= 10; } return binaryNumber; } } |

Step 1: 5/2, Remainder = 1, Quotient = 2

Step 2: 2/2, Remainder = 0, Quotient = 1

Step 3: 1/2, Remainder = 1, Quotient = 0

5 in decimal = 101 in binary

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