Java Program to convert an Integer into Binary

Integers

Integers are numbers whose base value is 10. The Integer or int data type is a 32-bit signed two’s complement integer. Its minimum value is – 2,147,483,648 and maximum value is 2,147,483,647. Its default value is 0.

Binary Numbers

A binary number is a number expressed in the base-2 numeral. Binary consists of only 2 digits 0 and 1.
Two operators are used in the conversion of integers to binary modulo and division to convert the given input into binary numbers.

Sample code

import java.util.Scanner;

public class integertobinary 
{
  public static void main(String[] args) 
  {
    int n, i;
    int[] a = new int[10];
    System.out.println("Enter the number to convert : ");
    Scanner sc = new Scanner(System.in);
    n = sc.nextInt();
    for (i = 0; n > 0; i++) 
    {
      a[i] = n % 2;
      n = n / 2;
    }
    System.out.println("Binary of the given number = ");
    for (i = i - 1; i >= 0; i--) 
    {
      System.out.print(a[i]);
    }
  }
}

Output

Enter the number to convert : 123
Binary of the given number = 1111011

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Java Program to convert an Integer into Binary