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Re-size Array (like expanding and image) - Java

开发者 https://www.devze.com 2023-04-13 04:25 出处:网络
Sorry let me rephrase the question, I need to figure out how to move each element of the array into the new array: like for the \"x\" position of each element would be moved to \"x*2\" and \"x*2+1\":

Sorry let me rephrase the question,

I need to figure out how to move each element of the array into the new array: like for the "x" position of each element would be moved to "x*2" and "x*2+1": so array[0] -> array2[0], array2[1] and array[1] -> array2[2], array2[3] etc. but for the "y" value also

For my Java application I need a function that inputs

   [[1,0,1],
    [1,0,1],
    [1,1,1]]

And would replicate the array and output

   [[1,1,0,0,1,1],
    [1,1,0,0,1,1],
    [1,1,0,0,1,1], 
    [1,1,0,0,1,1],
    [1,1,1,1,1,1],
    [1,1开发者_JS百科,1,1,1,1]]

here is what I can figure out

public short[][] expandArray(short[][] arr) {
   short[][] newArray = new short[arr.length*2][arr[0].length*2];
   for(int s=0; s<arr.length; s++)
      for(int ss=0; ss<arr[0].length; ss++) {
         newArray[s*2][(new corresponding row)] = arr[s][ss];
         newArray[s*2+1][(new corresponding row)] = arr[s][ss];

         newArray[s*2][(next row down)] = arr[s][ss];
         newArray[s*2+1][(next row down)] = arr[s][ss];
      }
   return newArray;
}

My goal is to duplicate each element in the array to the right and down

EX:

OriginalArray[0][0]

would be put into

NewArray[0][0], NewArray[0][1], NewArray[1][0], NewArray[1][1]

Thanks


import java.util.Arrays;

public class Main
{
    public static void main(String args[])
    {
        int[][] array = { {1,0,1}, {1,0,1}, {1,1,1} };
        int[][] newArray = replicate(array);

        int i = 1;

        System.out.print("[ ");
        for(int[] a : newArray)
        {
            System.out.print(Arrays.toString(a) + (i++ != newArray.length? ", " : "") );
        }
        System.out.println(" ]");
    }

    public static int[][] replicate(int[][] array)
    {
        int x = array.length;
        int y = array[0].length;

        int counterX = 0;
        int counterY = 0;

        int[][] newArray = new int[2 * x][2 * y];
        for(int[] a : array)
        {
            for(int b : a)
            {
                newArray[counterX++][counterY] = b;
                newArray[counterX--][counterY++] = b;

                newArray[counterX++][counterY] = b;
                newArray[counterX--][counterY++] = b;
            }
            counterY = 0;
            counterX++;
            counterX++;
        }

        return newArray;
    }
}

output:

[ [1, 1, 0, 0, 1, 1], [1, 1, 0, 0, 1, 1], [1, 1, 0, 0, 1, 1], [1, 1, 0, 0, 1, 1], [1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1] ]
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