Java program to produce Prime no

import java.io.*;
class prime
{
public static void main(String args[])throws IOException
{
int i,c;
System.out.println("prime numbers are");
for (i=2; i<=1000; i++)
{
c=2;
while(c<=i-1)
{
if(i%c==0)
break;
c++;
}
if(c==i)
{
System.out.println(i);
System.out.println(" ");
}
}
}
}