Recursion decimal to binary

This program can convert any number to its binary equivalent.
class binar
{
public static void main(String args[])
{  
decitobin(2);
System.out.println();
decitobin(4);
System.out.println();
decitobin(8);
System.out.println();
decitobin(3);
}
public static void decitobin(int num)
{  
if(num>0)
{ 
decitobin(num/2);
}

System.out.print(num%2);
}
}