Java Interview Programs

1.Armstrong Number

class armstrong
{
public static void main(String args[])
{
int num=0,digit=0,sum=0,cube,no;

no=num=371;
while(num!=0)
{

digit=num%10;
cube=digit*digit*digit;
sum=sum+cube;
num=num/10;

}
if(no==sum)
    {
        System.out.println("armstrong number");
     }
else
System.out.println("not a armstrong number");


}

}