Method validate

01Lab-Percolation/Percolation.java:39–42

(int p, String desc)

    }

    private void validate(int p, String desc) {
        if (p < 1 || p > gridSize)
            throw new IllegalArgumentException(desc + " index i out of bounds");
    }

    private boolean isInGrid(int row, int col) {
        return row >= 1 && row <= gridSize && col >= 1 && col <= gridSize;