将二维数组与一维数组组合

Question

I have 2 arrays one is a int[][] pixelYArray and the other one is a int[] pixelXArray . I can not set the full width and height of the image as lenghts because these pixels are already filtered on. For example having the color yellow and these are the left over pixels and I want to create an array or object like this:

 [
  {
    "pixel x" : 1,
    "pixel y" : [
      1, 2, 3, 100, 101, 102
    ]
  },{
    "pixel x" : 3,
    "pixel y" : [
      1, 2, 32, 100, 101, 102
    ]
  },
]

the text "pixel x" and "pixel y" are optional and not needed if its makes it easier to create the array. In Javascript you can achieve it by doing something like this

let array = [];
for(int i=0;i < pixelYArray.length;i++){
    let tmpArr = [];
    for(int j=0;j < pixelYArray[i].length; j++){
        tmpArr.push(pixelYArray[i][j]);
    }
    array.push({
        "pixel x" : pixelXArray[i],
        "pixel y" : tmpArr
    });
    /* or
    array.push({
        pixelXArray[i],
        tmpArr
    }); */
}

only how can you achieve this in Java because you can not create objects like this or push them into an array. I have a for loop like this:

   for(int i=0;i < pixelYArray.length;i++){
        System.out.println("pixel x: " + pixelXArray[i] + " pixel y: ");
        for(int j=0;j < pixelYArray[i].length; j++){
            System.out.print(pixelYArray[i][j] + "\t" );
        }
        System.out.println("\nEnd of Pixels for row \n");
    }

what gives an result like this and many more layers of X pixels and y pixels ofc

Answer 1

I think this will solve your problem:

public class Test {
    public static void main(String[] args) {
        List<Color> list = new ArrayList<>();
        Color c = new Color();
        c.pixel_x = 1;
        c.pixel_y.add(1);
        c.pixel_y.add(2);
        c.pixel_y.add(3);
        c.pixel_y.add(100);
        c.pixel_y.add(101);
        c.pixel_y.add(102);

        list.add(c);

        System.out.println(c);
    }
}

class Color {
    public int pixel_x;
    public List<Integer> pixel_y;

    public Color() {
        pixel_x = 0;
        pixel_y = new ArrayList<>();
    }

    @Override
    public String toString() {
        return pixel_x + " " + pixel_y;
    }
}

First you create a Color object that contains pixel_x of type Integer and pixel_y of type List<Integer> then in your main, every time you create a Color instance, add it to List<Color> .