Java Convert Array to ArrayList

In this Java core tutorial we learn how to convert an array to a java.util.ArrayList object in Java programing language.

How to convert Array to ArrayList in Java

In Java, with a given array we can use the Array.asList(T… a) method to create a List object and then use ArrayList(Collection<? extends E> c) constructor to instantiate a new ArrayList object as the following Java code.

ConvertArrayToArrayListExample1.java

import java.util.ArrayList;
import java.util.Arrays;

public class ConvertArrayToArrayListExample1 {
    public static void main(String... args) {
        String[] arrayOfString = new String[3];
        arrayOfString[0] = "Java";
        arrayOfString[1] = "Kotlin";
        arrayOfString[2] = "Groovy";

        // Convert array to ArrayList object
        ArrayList<String> arrayList = new ArrayList<>(Arrays.asList(arrayOfString));

        System.out.println("ArrayList: " + arrayList);
    }
}