Why this simple code gives outofmemory exception?

Question

public class Program
{
public static void main(String[] args) {

String [] arr={"if this simple string gives error?"};

int i=0;
while(i<10)
arr[0]+=arr[0];

System.out.println(arr[0]);
}
}

Answer 1

It's an infinite loop. You have to increment i inside the loop.

Answer 2

Because you have unlimited string concatenation, as far as I can see.
Your while loop never ends.

Answer 3

Ha ha ha, what a pity of me. Such a foolish mistake. Thank you 'Ivan G' and 'Tashi N'.😆