How to Convert a List of Integers to a List of Strings in Java - Step by Step Examples

How to Convert a List of Integers to a List of Strings in Java ?

Answer

To convert a list of integers to a list of strings in Java, you can use the Stream API along with the map function to transform each integer to its string representation.

✐ Examples

1 Convert List of Integers to List of Strings

In this example,

We have a list of integers named intList.
We use the stream() method to create a stream from the list.
We use the map function to apply a transformation to each integer in the stream.
Inside the map function, we convert each integer to its string representation using the Integer.toString() method.
We collect the stream back into a list of strings using the collect() method.

Java Program

import java.util.List;
import java.util.Arrays;
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {
        List<Integer> intList = Arrays.asList(1, 2, 3, 4, 5);
        List<String> stringList = intList.stream()
                                        .map(Object::toString)
                                        .collect(Collectors.toList());
        System.out.println("List of strings: " + stringList);
    }
}

Output

List of strings: [1, 2, 3, 4, 5]

Summary

In this tutorial, we learned How to Convert a List of Integers to a List of Strings in Java language with well detailed examples.

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