# Programming Shortcut

## Monday, February 4, 2019

### Decimal to binary in java with explanation

Hello Friends! Welcome to Programming Shortcut only programming,
Today we'll discuss how to convert a decimal to binary in java. there are two methods to convert decimal to binary:

## Decimal to binary in java

import java.util.Scanner;
public class DecimaltoBinary  {

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

int a[] = new int[1000];
System.out.println("Enter a Decimal number to convert binary");
int decimalnum = in.nextInt();
int temp = decimalnum; //the taken number to save take temp variable.
int n = 0;
while (temp > 0) { // checking the number to till '0'
int rem = temp % 2; // taking remainder of number
temp = temp / 2; // after taking remainder update the number
a[n] = rem;  // store the remainder into a array
n++;
}

//print the array in reverse order
System.out.print("The binary of " + decimalnum + " is: ");
for (int i = n - 1; i >= 0; i--) {
System.out.print(a[i]);
}
System.out.println("\n");
}
}

Output:
Enter a Decimal number to convert binary
23
The binary of 23 is: 10111

## Decimal to binary in java without array

import java.util.Scanner;
public class DecimaltoBinary  {

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

System.out.println("Enter a Decimal number to convert binary");
int num = input.nextInt();
int n = num;
String temp = "";
while (n > 0) {
int rem = n % 2;
n = n / 2;
temp = temp + rem;
}
String bin = new StringBuffer(temp).reverse().toString();

System.out.println("The binary number of " + num + " is: " + bin);
}
}

Output:
Enter a Decimal number to convert binary
24
The binary number of 24 is: 11000

Note: if adding in the String value store in the last of string value

For example:
String frist= "Programming";
String last="Shortcut";
String name= frist+last;
System.out.println(name);

output: ProgrammingShotcut

I make this programming and hope you are like the post if are you like the post you can please comment and Share the post to reach more people.
If any doubt about this java programming code or input & output please comment below
If you have another question about java programming send an email by contacting us form are given on the page right side.
I am Try to Help in your Programming Language by Programming Shortcut