Question

How to convert an int array to string using tostring method in java

Answer 1

you want to use the Arrays.toString(int[]) method:

import java.util.Arrays;

int[] array = new int[lnr.getLineNumber() + 1];
int i = 0;

..      

System.out.println(Arrays.toString(array));

Answer 2

Use java.util.Arrays:

String res = Arrays.toString(array);
System.out.println(res);