public static CellWorld<Double> createCellWorldForFig17_1() { CellWorld<Double> cw = new CellWorld<Double>(4, 3, -0.04); cw.removeCell(2, 2); cw.getCellAt(4, 3).setContent(1.0); cw.getCellAt(4, 2).setContent(-1.0); return cw; } }