How to Fix Java ClassNotFoundException: class not found

Quick Answer: Java ClassNotFoundException: class not found occurs when required jar file not in classpath. Add JAR to classpath to resolve this issue.

What Causes This Error

• Required JAR file not in classpath
• Typo in class name or package name
• JAR file not included in build
• Wrong version of library with missing class
• Class file deleted or corrupted
• Classpath not set correctly
• Maven or Gradle dependency not resolved

Step-by-Step Fixes

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FAQs

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