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Asked: 2026-05-30T13:54:02+00:00

I’m making the memory game concentration. In this I have a specified obligation to

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I’m making the memory game concentration.
In this I have a specified obligation to generate random pairs of numbers.
These are to be assigned to a cell at its creation on a game board.
My problem lies not in how to generate a random number as I am able to do this with — 

type = generator.nextInt(NUMBER_OF_ROWS*NUMBER_OF_COLUMNS);

However I must make sure that when I am populating my game board with Cell objects

board[row][column] = new Cell(this,type, row, column);

I have 2 cells of the same type, in order for the game to function.
Basically
I need 12 pairs of numbers that have been randomly generated.

Thanks

Varun

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1 Answer

  1. Editorial Team

    Invert the problem. Rather than think of generating 24 random numbers, what you really want is to distribute the numbers 1-12 randomly into a 24-cell array, with each number going into TWO randomly selected cells in the array. The simplest way to do this would be be to create a List<Cell>, populate it with 24 cells (two containing value 1, two containing value 2, etc), and then use Collections.shuffle(List<?>...)

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