How can I find the position of an object in a two-dimensional array?

StackOverflow https://stackoverflow.com/questions/16323500

  •  13-04-2022
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Question

So to be specific i have a two-dimensional array filled with JLabels. If from another method i get one JLabel that we know for sure that exists in that array how can i get the coordinates of the label in the array. part of code is this(P.S The array is [9][5]):

    labelsArrayColumns[1][1] = jLabel11;
    labelsArrayColumns[2][1] = jLabel21;
    labelsArrayColumns[3][1] = jLabel31;
    labelsArrayColumns[4][1] = jLabel41;
    labelsArrayColumns[5][1] = jLabel51;
    labelsArrayColumns[6][1] = jLabel61;
    labelsArrayColumns[7][1] = jLabel71;
    labelsArrayColumns[8][1] = jLabel81;
    labelsArrayColumns[9][1] = jLabel91;

So if I have jLabel81 how can i find out in which position of the array it is? And we are expecting [8][1].

Was it helpful?

Solution

I'd suggest two ways:
1) work through the whole 2D-array and compare every element with labelsArrayColumns[i][j].equals(jLabel81) until you find it
2) override the JLabel Class: just add a method to save and retrieve the position of the JLabel within your array

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