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10 April, 09:34

Hello I'm new to coding and in my class, we have jumped straight into coding with zero experience and or lessons, this is my first assignment and i am completely lost.

Write a program that reads text from a file. Create a 2-dimensional character array that is

6 * 7. Store the characters read in your array in row major order (fill row 0 first, then row

1, etc.). Fill any unused spaces in the 2-D array with the '*' character. If you have more

characters than space, ignore the excess characters.

Extract the characters from your array in column-major order (pull from column 0 first,

then column 1, etc.). Build a new string as you extract the characters. Display the new

string.

Here is an example for the input string

"It was a bright cold day in April, and the clocks were striking thirteen."

Output string: IatdAat apn bcyrdwro i aililtsgdn, h h e

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Answers (1)
  1. 10 April, 11:53
    0
    import java. io. BufferedReader;

    import java. io. FileReader;

    import java. io. IOException;

    public class CharTwoDArray {

    public static void main (String[] args) {

    String file = "word. txt";

    final int MAX_CHARS = 1000;

    int count = 0;

    char array[] = new char[MAX_CHARS];

    char array2D[][] = new char[6][7];

    try {

    int t;

    FileReader fr = new FileReader (file);

    BufferedReader br = new BufferedReader (fr);

    while ((t = br. read ()) ! = - 1) {

    if ((char) t = = '/n') continue;

    array[count++] = (char) t;

    }

    } catch (IOException e) {

    System. out. println ("Error in opening file!");

    System. exit (0);

    }

    int t = 0;

    for (int x = 0; x < 6; x++) {

    for (int y = 0; y < 7; y++) {

    / / if no char then adding *

    if (t > = count) {

    array2D[x][y] = '*';

    } else

    array2D[x][y] = array[t++];

    }

    }

    for (int i = 0; i < 6; i++) {

    for (int j = 0; j < 7; j++) {

    System. out. print (array2D[i][j]);

    }

    System. out. println ();

    }

    }

    }

    Explanation:

    Use buffer reader for reading file. Add char to 1D array. Add 1D array to 2D array. Display the 2D array.
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