Exception Propagation in Java: Explanation & Practice

Problem summary

Create a chain of method calls and observe how exceptions propagate.

Starter code

public class Main {
    // method1 calls method2 calls method3
    // method3 throws exception
    // Handle at appropriate level
    
    public static void main(String[] args) {
        // Call method1
    }
}

Expected output and test cases

• Propagation path

  Entering method1
  Entering method2
  Entering method3
  Exception in method3
  Handled in method1

• Early exception

  Entering method1
  Handled in method1

• No exception

  Entering method1
  Entering method2
  Entering method3
  Success

Hints

1. Exceptions propagate up call stack
2. Handle where appropriate
3. Log entry/exit for tracing

Related Exception Handling exercises

• Practice Exception Chaining in Java
• Practice Retry with Exceptions in Java
• Practice Age Range Validator in Java

Practice all Exception Handling exercises · Run this idea in the Java compiler