[Solved] While loop running incorrect number of times

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You must initialize finished to false if you want to enter the while, and after, when job is done set finished to true to exit the loop

boolean finished = false;
while (!finished) {
//     ↑ ↑ ↑ ↑ ↑ →→→→→→ this means loop while finished == false 
    randomNumber1 = random.nextInt(size);
    randomNumber2 = random.nextInt(size);
    if (puzzlePanel.arrayOfButtons[randomNumber1][randomNumber2].getText().isEmpty()) {
        puzzlePanel.arrayOfButtons[randomNumber1][randomNumber2].setText(puzzle.getSingleLetter(randomNumber1, randomNumber2) + "");
        finished = true;
     }    
 }

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solved While loop running incorrect number of times