Exception in thread "main"
java.lang.IllegalStateException: Cannot get a NUMERIC value from a STRING cell
at org.apache.poi.xssf.usermodel.XSSFCell.typeMismatch(XSSFCell.java:946)
at org.apache.poi.xssf.usermodel.XSSFCell.getNumericCellValue(XSSFCell.java:260)
at ExcelReaderPOIExample.main(ExcelReaderPOIExample.java:38)
Solution:
The cells in an Excel Spreadsheet can of various types so its better to either use an if-else or a switch-case to check what kind of value the cell holds before trying to fetch it,
while (cellIterator.hasNext()) {
Cell cell = cellIterator.next();
if (cell.getCellType() == CellType.NUMERIC) {
System.out.print((int) cell.getNumericCellValue() + "\t");
} else if (cell.getCellType() == CellType.STRING) {
System.out.print(cell.getNumericCellValue() + "\t");
} else if(cell.getCellType() == CellType.FORMULA) {
System.out.print(cell.getCellFormula() + "\t");
}
}
Facing issues? Have Questions? Post them here! I am happy to answer!
Author Info:
Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
Follow him on: X
You can also reach out to him via e-mail: rakesh@code2care.org
More Posts related to Java,
- Get the current timestamp in Java
- Java Stream with Multiple Filters Example
- Java SE JDBC with Prepared Statement Parameterized Select Example
- Fix: UnsupportedClassVersionError: Unsupported major.minor version 63.0
- [Fix] Java Exception with Lambda - Cannot invoke because object is null
- 7 deadly java.lang.OutOfMemoryError in Java Programming
- How to Calculate the SHA Hash Value of a File in Java
- Java JDBC Connection with Database using SSL (https) URL
- How to Add/Subtract Days to the Current Date in Java
- Create Nested Directories using Java Code
- Spring Boot: JDBCTemplate BatchUpdate Update Query Example
- What is CA FE BA BE 00 00 00 3D in Java Class Bytecode
- Save Java Object as JSON file using Jackson Library
- Adding Custom ASCII Text Banner in Spring Boot Application
- [Fix] Java: Type argument cannot be of primitive type generics
- List of New Features in Java 11 (JEPs)
- Java: How to Add two Maps with example
- Java JDBC Transition Management using PreparedStatement Examples
- Understanding and Handling NullPointerException in Java: Tips and Tricks for Effective Debugging
- Steps of working with Stored Procedures using JDBCTemplate Spring Boot
- Java 8 java.util.Function and BiFunction Examples
- The Motivation Behind Generics in Java Programming
- Get Current Local Date and Time using Java 8 DateTime API
- Java: Convert Char to ASCII
- Deep Dive: Why avoid java.util.Date and Calendar Classes
More Posts:
- Java: Reference List of Time Zones and GMT/UTC Offset - Java
- How to get cURL Command to run in verbose mode? - cURL
- Install Docker for Mac using Home-brew Cask - Docker
- Fix [Mac Terminal] The operation couldn’t be completed. Unable to locate a Java Runtime. (update for Ventura/Sonoma) - Java
- 3 Ways to find if element is present in a List in Python - Python
- 24: Append One String to Another in Python Program - Python-Programs
- Keyboard Shortcut to delete a file on a Mac [Macbook] - MacOS
- Java Program: Find max value in List using Java 8 Stream API - Java