Error Handling

Error handling and exception management

10 program solutions

Program Solutions

Try-Catch-Finally

Basic error handling with try-catch-finally

Custom Errors

Create and use custom error classes

Error Propagation

Propagate errors through call stack

Async Error Handling

Handle errors in async operations

Global Error Handling

Handle errors globally

Error Logging

Log errors effectively

Error Retry Logic

Implement retry logic for failed operations

Defensive Programming

Write defensive code to prevent errors

Error Recovery

Recover from errors gracefully

Error Testing

Test error handling

Topic Strategy: Error Handling

This topic is best practiced through repetition with variation. Solve each program, then modify constraints and test alternate approaches so you understand why one solution performs better than another.

During interviews, explain the approach before coding: input assumptions, core logic, complexity, and edge cases. Clear reasoning often matters as much as final code correctness.

Once comfortable, time-box each question and target clean, readable code with meaningful variable names and a quick dry run explanation.