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BJP5 Self-Check 12.6: mysteryXY

Language/Type: Java recursion recursive tracing
Author: Marty Stepp (on 2019/09/19)

For each call to the following method, indicate what console output is produced:

public void mysteryXY(int x, int y) {
    if (y == 1) {
    } else {
        System.out.print(x * y + ", ");
        mysteryXY(x, y - 1);
        System.out.print(", " + x * y);
mysteryXY(4, 1);
mysteryXY(4, 2);
mysteryXY(8, 2);
mysteryXY(4, 3);
mysteryXY(3, 4);

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