无法理解apache POI的shiftRows方法的工作

Question

I am working with .xls file i am going to translate(shift) Rows of excell table to specific position.But got unwanted results everytime.I had already gone through documentation of method shiftRows.Unable to understand working of this statement.

sheet.shiftRows(34, sheet.getLastRowNum(), processIndex-4);

Sometimes it shifted two rows in Excell Table.

Answer 1

        sheet.shiftRows(int startRow, int endRow, int n);

is used to Shift number of rows down the sheet . where

• startRow =At which we need to insert row .
• endRows = Total rows
• n = How much rows we are going to insert

The javadoc for org.apache.poi.ss.usermodel.Sheet.shiftRows provides more details.