Java Interview Questions

Q21 What is exception handling in Java? Generate → Q22 What is the difference between checked and unchecked exceptions? ✓ Answered → Q23 What is try-with-resources? ✓ Answered → Q24 Explain garbage collection in Java. ✓ Answered → Q25 What is the difference between heap and stack memory? Generate → Q26 What are Java 8 features? ✓ Answered → Q27 Explain lambda expressions in Java. ✓ Answered → Q28 What is Stream API in Java? ✓ Answered → Q29 What is Optional in Java? ✓ Answered → Q30 Explain functional interfaces. ✓ Answered → Q31 What is Comparator vs Comparable? ✓ Answered → Q32 What is serialization in Java? ✓ Answered → Q33 What is transient keyword? ✓ Answered → Q34 What are annotations in Java? ✓ Answered → Q35 What is reflection in Java? ✓ Answered → Q36 What is the difference between throw and throws? ✓ Answered → Q37 Explain volatile keyword in Java. ✓ Answered → Q38 What is the use of static keyword? ✓ Answered → Q39 What is immutability in Java? ✓ Answered → Q40 How does HashMap work internally? ✓ Answered →