Dec 31, 2012 · I am new in Java so I need little help. I have . String [] scripts = new String [] ("test3","test4","test5"); and I want to add new strings ( string1,string2) to this array ( scripts) for examples. String string1= " test1" String string2 = "test2" I want to add the new string not in the init but in later phase. How I can do it ?

Mar 12, 2023 · Use a List<String>, such as an ArrayList<String>.It's dynamically growable, unlike arrays (see: Effective Java 2nd Edition, Item 25: Prefer lists to arrays).

Jan 25, 2013 · So in the case of a String array, once you create it with some length, you can't modify it, but you can add elements until you fill it. String[] arr = new String[10]; // 10 is the length of the array. arr[0] = "kk"; arr[1] = "pp"; ... So if your requirement is to add many objects, it's recommended that you use Lists like:

Oct 12, 2012 · I am trying to pass a string array as an argument to the constructor of Wetland class; I don't understand how to add the elements of string array to the string array list. import java.util.ArrayList; public class Wetland { private String name; private ArrayList<String> species; public Wetland(String name, String[] speciesArr) { this.name = name ...

Feb 20, 2018 · public static int[] append(int[] array, int value) { int[] result = Arrays.copyOf(array, array.length + 1); result[result.length - 1] = value; return result; } This quickly gets inefficient, as each time append is called a new array is created and the old array contents is copied over.

is it posible to add more arrays in list in the same line of the code, something like aList.addAll(Arrays.asList(question1,question2,question3...)); – GlacialMan Commented Apr 11, 2016 at 22:44

Dec 14, 2011 · One of my method returns String[] array in a loop. While loop contiues, I want to add these String[] arrays to another String[] array. I want something like this given below. It gives ype mismatch:

Sep 17, 2008 · Here's a simple method that will concatenate two arrays and return the result: public <T> T[] concatenate(T[] a, T[] b) { int aLen = a.length; int bLen = b.length ...

First of all you use here two strings: "" marks a string it may be ""-empty "s"- string of lenght 1 or "aaa" string of lenght 3, while '' marks chars . In order to be able to do String str = "a" + "aaa" + 'a' you must use method Character.toString(char c) as @Thomas Keene said so an example would be String str = "a" + "aaa" + Character.toString ...

Jan 20, 2014 · You can add new element to array if index of new element less than the size of array. arr[i]="some value" // to do this i < arr.length If array is completely filled with elements when you assign new value to index previous value will override. You can't add more elements than the size of declared since array has fixed size.