How Do I Convert an Integer to a String in Java?

Abdul D.

—December 15, 2024

The Problem

You don’t know how to convert an Integer to a String in Java.

There are several ways to convert an Integer to a String in Java. This solution covers three of the most common approaches: using the String.valueOf() method, using the Integer.toString() method, and concatenating an integer with an empty string.

Using `String.valueOf()`

The String.valueOf() method is one of the simplest ways to convert an Integer to a String:

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class Main {
    public static void main(String[] args) {
        int number = 123;
        String numberString = String.valueOf(number);
        System.out.println("Converted String: " + numberString);
    }
}

In this example, String.valueOf(number) converts the int value, number, to a String.

Using `Integer.toString()`

Alternatively, you can use the Integer.toString() method to convert an Integer to a String:

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class Main {
    public static void main(String[] args) {
        int number = 123;
        String numberString = Integer.toString(number);
        System.out.println("Converted String: " + numberString);
    }
}

This method also converts the int value, number, to a String.

Concatenating With an Empty String

You can also convert an Integer to a String by concatenating it with an empty string (""):

Click to Copy

class Main {
    public static void main(String[] args) {
        int number = 123;
        String numberString = number + "";
        System.out.println("Converted String: " + numberString);
    }
}

This approach works, but it’s less readable than the previous methods.

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How Do I Convert an Integer to a String in Java?

The Problem

The Solution

Using `String.valueOf()`

Using `Integer.toString()`

Concatenating With an Empty String

Holiday E-Commerce Checklist: A Developer’s Survival Guide

How Do I Convert an Integer to a String in Java?

The SolutionThe Solution

Using String.valueOf()Using String.valueOf()

Using Integer.toString()Using Integer.toString()

Concatenating With an Empty StringConcatenating With an Empty String

The Solution

Using `String.valueOf()`

Using `Integer.toString()`

Concatenating With an Empty String