Hi Friend,

Try the following code:

import java.util.*;

public class ConvertDecimalToBinaryUsingStack
{
public static void main(String args[])
{
Scanner input = new Scanner(System.in);
System.out.print("Enter the number: ");
int num = input.nextInt();
Stack<Integer> stack = new Stack<Integer>();

if(num == 0) {
System.out.println("BINARY is 0000");
}
else if(num == 1) {
System.out.println("Binary is: 0001");
}
else {
while(num != 0) {
int a = num/2;
int b = num%2;
stack.push(b);
num = a;
}
}

while(!stack.empty()) {
System.out.print(stack.pop());
}

System.out.println(" ");
}
}

Thanks