Jun 9, 2014 · I need to take a text file and initialize a 2d array from the text in that file. Each line in the text file has 20 characters. 5 lines. So far all I have is. while (scanner.hasNextLine()){ while (scanner.hasNext()){ myArray[row][column] = scanner.next(); column++; row++;

Jun 11, 2018 · I just started learning java and now I'm trying to input a text file and make it a 2-dimensional string array. But somehow it shows no line found in the output (NoSuchElementException). So here is my code: Scanner sc = new Scanner(new BufferedReader(new FileReader("Maze.txt"))); String [][] mazearray = new String[Max_Maze_Row][Max_Maze_Column];

Mar 5, 2014 · Write a program that reads info into a two dimensional array of intS. The program should determine if the matrix is a magic square or not. Working Solution: for (int i = 0; i < length.length; i++) { intLength++; String[] currentLine = in.nextLine().trim().split("\\s+"); . for (int i = 0; i < currentLine.length; i++) {

Nov 19, 2024 · In Java, there are multiple ways to read a file into a 2D array, each with different levels of complexity and flexibility. BufferedReader is simple and effective for basic CSV files, while java.nio.file.Files provides a streamlined approach.

Oct 4, 2024 · Each method discussed in this tutorial offers a unique way to read a file into a 2D array in Java. The BufferedReader method gives us full control over the reading process, while the Java NIO API provides a more concise and functional solution.

Nov 13, 2024 · Declaring 2-D array in Java. Any 2-dimensional array can be declared as follows: Syntax: // Method 1 data_type array_name[][]; // Method 2 data_type[][] array_name; data_type: Since Java is a statically-typed language (i.e. it expects its variables to be declared before they can be assigned values). So, specifying the datatype decides the type ...

Feb 9, 2025 · Reading Files and Creating 2D Arrays in Java. This section details the process of reading data from a file and populating a two-dimensional array in Java. The process typically involves opening a file, reading its content line by line, parsing each line to extract relevant data, and finally, populating the 2D array with the extracted information.

Jan 8, 2025 · Two – Dimensional Array (2D-Array) Two – dimensional array is the simplest form of a multidimensional array. A 2-D array can be seen as an array storing multiple 1-D array for easier understanding. Syntax (Declare, Initialize and Assigning) // Declaring and Intializing data_type[][] array_name = new data_type[x][y]; // Assigning Value

Oct 12, 2014 · I am trying to add values into a 2d array from a text file. I cannot figure out how to convert the input file to teacher's array format. The file contains a first line that goes into an array that represents vertices.

Learn how to read a 2D array from a file in Java with this comprehensive guide. Explore code examples and step-by-step instructions. Discover the method to read a 2D array from a file in Java through practical examples.