How to Convert an Integer Array to a String in Java?

Converting an Int Array to a String Using toString

Problem:

Attempts to convert an int array to a String using the toString(int[]) method but encountering an error when trying to invoke it on a new String object.

Code:

<code class="java">int[] array = new int[lnr.getLineNumber() + 1];
int i = 0;

System.out.println(array.toString());
System.out.println(new String().toString(array)); // Error</code>

Error:

The method toString() is not applicable for arguments of type int[].

Solution:

The desired conversion can be achieved by utilizing the static Arrays.toString(int[]) method from the java.util package. Here's the modified code:

<code class="java">import java.util.Arrays;

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

System.out.println(Arrays.toString(array));</code>

Description of Arrays.toString(int[]):

This method returns a string representation of an int array. The string comprises a list of array elements enclosed in square brackets. Adjacent elements are separated by commas followed by spaces.

Example Output:

The sample code with the corrected method invocation should produce an output along the lines of:

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]

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