a program which accept amount in dollars and convert it to the rupees.

Write a program, which accept amount in dollars, and convert it to the rupees.
class rupeeDollar
{
public static void main(String args[])
{
double rup,dol;
dol=Double.parseDouble(args[0]);
if(dol>0)
{
rup=dol*45.38;
System.out.println("$"+dol+" is equal to "+rup+" INR");
}

}
}