Exceptions Basics

What are exceptions?

Interview Relevant: Exception handling is crucial
5 min read

Exceptions in Java

An exception is an unwanted or unexpected event that disrupts the normal flow of a program during runtime.

Key Idea: Exceptions are runtime problems, not compile-time syntax errors.

Code Examples

Runtime exception example

java
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2int a = 10 / 0; // ArithmeticException
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Use Cases

  • Handling runtime failures
  • Graceful error handling
  • Preventing application crashes

Common Mistakes to Avoid

  • Ignoring exceptions
  • Using exceptions for normal control flow