// Create a new workbook
Workbook workbook = new Workbook();
IWorksheet worksheet = workbook.getActiveSheet();
        
worksheet.getRange("J12").setValue(1);
        
//Set the view mode of the worksheet to PageBreakPreview.
worksheet.getSheetView().setViewType(ViewType.PageBreakPreview);

//Modify the zoom of the PageBreakPreview to 80%.
worksheet.getSheetView().setZoom(80);

workbook.save("PageBreak.xlsx");

// Configure Sheet Settings
Workbook workbook = new Workbook();
        
// Fetch the default worksheet
IWorksheet worksheet = workbook.getWorksheets().get(0);
        
// Assign the values to the cells
worksheet.getRange("B1").setValue("ABCD");
worksheet.getRange("B2").setValue(3);
worksheet.getRange("C1").setValue("Documents");
worksheet.getRange("C2").setValue(4);
worksheet.getRange("D1").setValue("Google");
worksheet.getRange("D2").setValue("ABCD");
worksheet.getSheetView().setDisplayRightToLeft(true);

// Split worksheet to panes using splitPanes() method.
worksheet.splitPanes(worksheet.getRange("B3").getRow(), worksheet.getRange("B3").getColumn());

// Create a new workbook
Workbook workbook = new Workbook();
IWorksheet worksheet = workbook.getWorksheets().get(0);
worksheet.getRange("A1:I88").setValue(10);

// Set to not show horizontal gridlines
worksheet.getSheetView().setDisplayHorizontalGridlines(false);

// Set to show vertical gridlines
worksheet.getSheetView().setDisplayVerticalGridlines(true);

// Save workbook to ssjson
String json = workbook.toJson();
try {
    BufferedWriter out = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream("HorizontalVerticalGridlines.ssjson"), "utf-8"));
    out.write(json);
    out.flush();
    out.close();
} catch (IOException e) {
    e.printStackTrace();
}