text: public LazyAreaEval getRow(int rowIndex) {if (rowIndex >= getHeight()) {throw new IllegalArgumentException("Invalid rowIndex " + rowIndex+ ".  Allowable range is (0.." + getHeight() + ").");}int absRowIx = getFirstRow() + rowIndex;return new LazyAreaEval(absRowIx, getFirstColumn(), absRowIx, getLastColumn(), _evaluator);}