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DecToBin.java

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import java.util.Scanner;

public class DecToBin {

public static String toBinary(int n) {

if (n == 0) {

return "0";

}

String binary = "";

while (n > 0) {

int rem = n % 2;

binary = rem + binary;

n = n / 2;

}

return binary;

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

System.out.print("Enter a number: ");

int decimal = sc.nextInt();

String binary = DecToBin.toBinary(decimal);

System.out.println("The binary representation is " + binary);

sc.close();

}