A java program error of array index out of bounds

publicclassB28Exp2{

public static void main(String[] args) 
{intnum1=(Integer.parseInt(args[0]));
System.out.println("Yourrollno.is"+num1);

for(inti=num1;i<10000;i++){intcheck,rem,sum=0;
check = i;
while(check!=0)
{
rem=check%10;
sum= sum+ (rem*rem*rem);
check=check/10;
}
if(sum==i){
System.out.println(""+i+"isthearmstrongnumberafteryourrollNumber");
break;
}
}
}
}