JAVA PRIME GENERATOR PROBLEM

[coder_baba]

**MY QUESTION=**PRIME1 Problem - CodeChef
**MY SOLUTION=http://www.codechef.com/submit/complete/566496-2--55575863844af
TYPE OF ERROR=TIME LIMIT EXCEEDED`

PLZ EXPLAIN MY MISTAKE AND DEBUG MY CODE

[ashish1729]

your program is very slow, use sieve instead

try your program for

999000000 - 1000000000