Sep 5, 2015 · If you're working from the console I think this is the easiest way for a beginner to tackle user input: import java.util.Scanner; public class ReadToStringArray { private static String[] stringArray = new String[3]; // method that reads user input into the String array private static void readToArray() { Scanner scanIn = new Scanner(System.in); // read from the console 3 …

Mar 28, 2023 · Since you know that you want to have an array of 20 string: String[] array = new String[20]; Then your for loop should use the length of the array to determine when the loop should stop. Also you loop is missing an incrementer. Try the following code to get you going:

I know how to read a file with Java using Scanner and File IOException, but the only thing I don't know is how to store the text in the files as an array. Here is a snippet of my code: public s...

Dec 4, 2015 · I have a question about storing string in java. You know that I can store strings using a String class or a character array, but we normally use String class to store string. But Why do you store string in String object as opposed to using character array for storage. As I know, other low-level languages strings are stored as character array.

Aug 27, 2017 · To store the data you can do several things: Use a String Array, if you know the number of items. Use a String ArrayList, if you dont know the number of items. If you are using the array, the declare the String array, String arr[]=new String[numberOfItems]; and then every time you are iterating the loop write: arr[position++]=c.getString(position);

To continue this train of thought, you could then convert the char array to a String array: String[] stringArray = new String[charArray.length]; for (int i = 0; i < charArray.length; i++){ stringArray[i] = String.valueOf(charArray[i]); } At this point, your stringArray will be filled with the original values from your original string "name".

Apr 2, 2014 · No, far better to serialize your array as text and store it as such. Edit... A library like JSON-lib supports bi-directional serialization on multidimensional arrays. Just run your array through JSON-lib to get a JSON string, store that string, then when you want your array back run the string through JSON-lib.

Aug 12, 2018 · Your array n should be declared as: char[] n = new char[str.length()]; That creates an array with the exact size needed to put all your String's characters in it. An ArrayIndexOutOfBoundsException is thrown when you access an illegal index of the array, in this case I suspect your array is smaller than the length of the String.

all,I'm now facing the problem of no idea on storing the content in text file into the array. The situation is like, text file content: abc1 xyz2 rxy3 I wish to store them into array line by line...

Nov 26, 2018 · If you're dead set on using a primitive array, only a minor change is required to get your example to work. As explained in other answers, the size of the array can not be included in the declaration. So changing: private ArrayList<String[]> addresses = new ArrayList<String[3]>(); to. private ArrayList<String[]> addresses = new ArrayList<String