/Java/Deal with empty or blank cell in excel file using apache poi

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

public class Info {

	private String name;
	private String mobile;
	private String phone;
	private String permAddress;
	private String commAddress;

	//getters and setters

	@Override
	public String toString() {
		return "Info [name=" + name + ", mobile=" + mobile + ", phone=" + phone + ", permAddress=" + permAddress
				+ ", commAddress=" + commAddress + "]";
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

mobileCell.setCellType(Cell.CELL_TYPE_STRING);
info.setMobile(mobileCell.getStringCellValue());

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.NumberToTextConverter;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public final class ExcelUtil {

	private ExcelUtil() {
	}

	public static List<Info> extractInfo(final String file) {
		List<Info> infoList = new ArrayList<Info>();
		Workbook wb = null;

		try {
			wb = new XSSFWorkbook(new FileInputStream(new File(file)));
			Sheet sheet = wb.getSheetAt(0);

			boolean skipHeader = true;

			for (Row row : sheet) {
				if (skipHeader) {
					skipHeader = false;
					continue;
				}

				List<Cell> cells = new ArrayList<Cell>();

				int lastColumn = Math.max(row.getLastCellNum(), 5);// because my
																	// excel
																	// sheet has
																	// max 5
																	// columns,
																	// in case
																	// last
																	// column is
																	// empty
																	// then
																	// row.getLastCellNum()
																	// will
																	// return 4
				for (int cn = 0; cn < lastColumn; cn++) {
					Cell c = row.getCell(cn, Row.MissingCellPolicy.RETURN_BLANK_AS_NULL);
					cells.add(c);
				}

				Info info = extractInfoFromCell(cells);
				infoList.add(info);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (wb != null) {
				try {
					wb.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}

		return infoList;
	}

	private static Info extractInfoFromCell(List<Cell> cells) {
		Info info = new Info();

		Cell nameCell = cells.get(0);
		if (nameCell != null) {
			info.setName(nameCell.getStringCellValue());
		}

		Cell mobileCell = cells.get(1);
		if (mobileCell != null) {
			switch (mobileCell.getCellType()) {
			case NUMERIC:
				info.setMobile(NumberToTextConverter.toText(mobileCell.getNumericCellValue()));
				break;
			case BLANK:
				break;
			default:
				break;
			}
		}

		Cell phoneCell = cells.get(2);
		if (phoneCell != null) {
			switch (phoneCell.getCellType()) {
			case NUMERIC:
				info.setPhone(NumberToTextConverter.toText(phoneCell.getNumericCellValue()));
				break;
			case BLANK:
				break;
			default:
				break;
			}
		}

		Cell permAddressCell = cells.get(3);
		if (permAddressCell != null) {
			info.setPermAddress(permAddressCell.getStringCellValue());
		}

		Cell commAddressCell = cells.get(4);
		if (commAddressCell != null) {
			info.setCommAddress(commAddressCell.getStringCellValue());
		}

		return info;
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

package com.roytuts.java.apache.poi.excel.deal.empty.blank.cell;

import java.util.List;

public class BlankCellHandlerApp {

	public static void main(String[] args) {
		List<Info> infoList = ExcelUtil.extractInfo("info.xlsx");

		for (Info info : infoList) {
			System.out.println(info);
		}
	}

}

Source: roytuts.com

Deal with empty or blank cell in excel file using apache poi

//If you are using apache dependency version 3.12 then you need to handle different way. The switch case statement should be replaced in the following way for numeric cell types.

switch (mobileCell.getCellType()) {
case NUMERIC:
	info.setMobile(NumberToTextConverter.toText(mobileCell.getNumericCellValue()));
	break;
case BLANK:
	break;
default:
	break;
}

Source: roytuts.com

Similar codes

0 vote187 views4 answers
Duckduckgo
Java
0 vote189 views1 answer
How to catch enter key in java text field
Java
-5 votes189 views1 answer
Android studio get time
Java
0 vote176 views1 answer
64 encode java
Java
0 vote180 views1 answer
Printing multiple variables in java
Java
7 votes138 views2 answers
Arraylist to string
Java
3 votes175 views1 answer
Declare array with values java
Java
3 votes246 views1 answer
How to change font size in JLabel
Java
0 vote161 views1 answer
How to find mongo java driver version
Java
1 vote171 views2 answers
Java treeset sort alphabetically
Java