Also, in Java arrays have a length property, so theres no need to pass d. Usagi Miyamoto at 10:00 You may want to change from arrays to List. Java - Add Element to an Array Ask Question Asked 11 years, 5 months ago Modified 9 years, 7 months ago Viewed 47k times 1 Looked around, couldn't find any similar questions in java. You may assign it to the variable referencing the old array, but you cannot do this to a method argument. Basic Operations on ArrayList The ArrayList class provides various methods to perform different operations on arraylists. To add or remove elements, you have to create a new array. We will learn more about the add () method later in this tutorial. Keep in mind that this will give you the desired result, but you will also lose the laziness of a Stream because you need to consume it before inserting a new element. To clarify the terminology right: arrays are fixed length structures (and the length of an existing cannot be altered) the expression add at the end is meaningless (by itself). Here, we have used the add () method to add elements to the arraylist. One approach is to use a terminal operation to collect the values of the stream to an ArrayList and then simply use add (int index, E element) method.
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