Pergunta de entrevista da empresa [24]7.ai

Round 4: F2F 1. Brief about myself. 2. What is a deadlock? Give a real-time example 3. What is multithreading? 4. How do threads communicate each other? 5. Given a sentence reverse the entire sentence including their letters in their words - O(n^2) is highly discouraged. 6. Design a framework for the below requirements [Explained the Data Driven Framework] - Read the raw data from - Excel or DB - Process the raw data. - Once processed call the Business Logic. - Once Business Logic is completed call the Report Generation. - After Report has been generated, display the result in a good format. For the above requirement Which framework would you use and why? If there's a future requirement to add or delete a particular task how will you handle it? - Task Manager will take care. 7. Difference between String, StringBuilder and StringBuffer. 8. Where does a String gets initialized if you declare it with null?