Convert List to Array in Java - CodeGym In addition to Commons Lang, you can do this with Guava 's method Ints.toArray(Collection collection) : List list = ... Collections.addAll method all the array elements to the specified collection. In this way, we access all the list elements one by one … This method simply creates a new array with the size same as the list and iterates over the list filling the array with elements. Let us discuss each of the approaches one by one. fruitList.add ("Mango"); convert list to array in java - Yes. However, this instinctive belief isn't … In this quick tutorial, we’re going to look at different ways to convert an array to String in Java. Convert Int Array to Arraylist in Java | Delft Stack If you think, the things we do are … In java 8 there is … Manual method. ArrayList is a resizable List implementation backed by an array. Convert List to Array Java Example 2. We can use Java 8 Stream to convert List to List. StringListtoArray.java In java we have inbuilt function to convert String array to List. In many cases, you will have to convert an ArrayList to Array in Java. Collect Stream of Integer into List of Integer. A Computer Science portal for geeks. T[] toArray(T[] array) This method returns an array containing all the elements of the argument list in the same sequence. Object[] toArray() We will use Apache Common Lang, which is a set of helper methods. We can do this using a for loop, Object[] toArray() method, T[] toArray() method, and mapToInt() method. We have first used the toArray() method to convert List into Array of the same type, and then we use ArrayUtils to convert wrapper class array into a primitive array.