Index – Interview

Java Garbage Collection: Concepts, Algorithms, and Object Lifecycle (July 2, 2025)

Lead-Level Java Interview Questions and Answers (June 26, 2025)

Java 21 Features: Before vs After with Examples and Rationale (May 24, 2025)

Java Scenario Question 1 (April 21, 2025)

Password Security: Hashing vs Encryption (March 12, 2025)

Approaches for finding pairs with a sum of 5 (March 12, 2025)

Count repeated numbers in an array (March 12, 2025)

CAS (Compare-And-Swap) Functions in ConcurrentHashMap (March 5, 2025)

Java Concurrent Collections (February 8, 2025)

Internal Working of LinkedHashMap in Java (February 8, 2025)

Internal Working of ArrayDeque in Java (February 8, 2025)

Internal Working of PriorityQueue in Java (February 8, 2025)

Internal Working of TreeSet in Java (February 8, 2025)

Internal Working of LinkedHashSet in Java (February 8, 2025)

Internal Working of Vector in Java (February 8, 2025)

Internal Working of LinkedList in Java (February 8, 2025)

Internal Working of ArrayList in Java (February 8, 2025)

Internal Working of TreeMap in Java (February 8, 2025)

Internal Working of HashMap in Java (February 8, 2025)

Internal Working of HashSet in Java (February 8, 2025)

Notes on volatile in Java (January 21, 2025)

Context-Specific Deserialization Filters in Java (January 21, 2025)

Garbage Collectors in Java: An Overview (January 21, 2025)

Deprecation of SecurityManager and Alternatives (January 21, 2025)

Deprecated Thread.stop() and Alternatives (January 21, 2025)

CompletableFuture in Detail (January 21, 2025)

Java Multithreading Frameworks: Detailed Overview (January 21, 2025)

ExecutorService in Java: Overview, Functions, and Examples (January 21, 2025)

Java Coding interview Questions (January 19, 2025)

Comparable vs Comparator (January 18, 2025)

Thread: Differences between t.start() and t.run() (January 18, 2025)

Covariant Return Type (January 18, 2025)

Association vs Aggregation (January 18, 2025)

Iterator vs ListIterator (January 18, 2025)

HashMap vs WeakHashMap (January 18, 2025)

Understanding Lambda Expressions vs Method References in Java (January 18, 2025)

How to Make a Class Immutable in Java? (January 18, 2025)

Threads in Java (January 18, 2025)

Interfaces in Java (January 18, 2025)

Just-In-Time (JIT) Compilation in Java (January 18, 2025)

Java Exception Handling (January 18, 2025)

Serialization and Deserialization in Java (January 18, 2025)

JDBC in Java (January 18, 2025)

What are Servlets in Java? (January 18, 2025)

What is Multiple Inheritance? Is Multiple Inheritance Supported in Java? (January 18, 2025)

Encapsulation, Inheritance, and Polymorphism in Java (January 18, 2025)

Abstract Class vs Interface in Java (January 18, 2025)

What is difference between equals() vs == in Java (January 18, 2025)

Can We Overload and Override Static Methods in Java? (January 18, 2025)

What is the Java Collections? (January 18, 2025)

What are differences between String, StringBuffer, and StringBuilder in Java? (January 18, 2025)

What is difference between Final, Finally, and Finalize in Java? (January 18, 2025)

What are Wrapper Classes in Java (January 18, 2025)

Understanding Processes and Threads in Java (January 18, 2025)

Synchronization in Java (January 18, 2025)

What is bytecode and class loader in java? (January 18, 2025)

What is JDK, JRE, and JVM in Java (January 18, 2025)

Types of Programming Paradigms and Their Use in Java (January 18, 2025)

Why Were Default and Static Methods Introduced in Java 8? (January 18, 2025)

Why Was the Date and Time API Introduced in Java 8? (January 18, 2025)

What is Stream in Java? (January 18, 2025)

What is Lamda in java? (January 18, 2025)

Java 8 features (January 18, 2025)

Java 11 features (January 18, 2025)

Java 17 features (January 18, 2025)

Pass by Value vs Pass by Reference in Java (January 18, 2025)

Heap Memory vs Stack Memory in Java (January 18, 2025)

Inheritance Scenarios in Java (January 18, 2025)

How to create threads in java? (January 18, 2025)