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Thread: Help with this please :)

  1. #1
    Junior Member
    Join Date
    Nov 2010
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    Default Help with this please :)

    import java.util.Scanner;
    import java.io.*;
    public class Part5{
        public static int [][] getSubMat(int [][] data, int row, int col, int width, int height){
    int [][] newMat = new int [height][width];
    for(int g = 0; g < newMat.length ; g++){
        for(int h = 0; h < newMat.length; h++){
            for(int i = row; i < height +row; i++){
                for(int j = col; j < width+col; j++){
            return null;
        public static void main (String [] args){
            Scanner input = new Scanner(System.in);
            int [][] list = {{1,2,3,4,5},

    im trying to extract this matrix and putting into a submatrix but i keep getting 14 on every location of the new matrix... help... but when i go..

      for(int i = row; i < height +row; i++){
                for(int j = col; j < width+col; j++){
                         System.out.printf("%2d" + " " ,data[i][j]);
    on my for loop. i get exactly the numbers that i want.. help

  2. #2
    Crazy Cat Lady KevinWorkman's Avatar
    Join Date
    Oct 2010
    Washington, DC
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    Default Re: Help with this please :)

    Why on earth do you have a 4-nested for loop? What do you think that's doing?

    PS- In the future, you probably want to use more meaningful post titles. Generic titles like "help with this please" tend to be ignored. We know you need help. What kind? A title like "extracting specific section of 2D array" would have been a lot more helpful.
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