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SET 15 – Default Methods, Static Methods and Functional Interfaces
  • interview
  • java
  • programming

SET 15 – Default Methods, Static Methods and Functional Interfaces

  • Rahul Mittal
  • June 19, 2026
  • 8 min read

Java 8 introduced one of the most important changes to interfaces: Default methods Static methods inside interfaces Multiple inheritance conflict resolution Functional interfaces Method references Date-Time API Lambda exception handling…

Java 8 Programming Assessment
  • interview
  • java
  • programming

Java 8 Programming Assessment

  • Rahul Mittal
  • June 19, 2026
  • 6 min read

50 OCP-Style Questions for Java 8 Features Java 8 introduced some of the biggest changes in the language: ✅ Lambda Expressions✅ Functional Interfaces✅ Streams API✅ Optional✅ Method References✅ Default Methods✅…

Java OCP Programming Challenge – Sets 9 to 11
  • interview
  • java
  • programming

Java OCP Programming Challenge – Sets 9 to 11

  • Rahul Mittal
  • June 19, 2026
  • 6 min read

30 Program-Based Questions for Java Developers Most interview failures happen not because candidates don’t know concepts, but because they cannot read and understand code quickly. These assessments focus entirely on:…

Java Collections and Algorithms Assessment
  • interview
  • java
  • programming

Java Collections and Algorithms Assessment

  • Rahul Mittal
  • June 19, 2026
  • 6 min read

SET 6 – Collections Fundamentals Q1. What is the output? List<Integer> list =         Arrays.asList(10,20,30); System.out.println(list.get(1)); A. 10B. 20C. 30D. Exception Q2. What is the output? Set<Integer>…

SET 4 – Java 8, Streams, Optional and Advanced OOP
  • interview
  • java
  • programming

SET 4 – Java 8, Streams, Optional and Advanced OOP

  • Rahul Mittal
  • June 19, 2026
  • 5 min read

Q1. What is the output? List<Integer> list =         Arrays.asList(1,2,3); list.forEach(System.out::print); A. 1 2 3B. 123C. [1,2,3]D. Compilation Error Q2. What is the output? Stream.of(1,2,3,4)    …

Java OCP-Style Programming Assessment
  • interview
  • java
  • programming

Java OCP-Style Programming Assessment

  • Rahul Mittal
  • June 19, 2026
  • 6 min read

50 Multiple Choice Questions to Evaluate Real Java Skills Introduction Many Java developers can explain concepts but struggle to read and understand actual code. This assessment is designed to evaluate:…

SOLID Principles in Java: Building Maintainable and Scalable Applications
  • interview

SOLID Principles in Java: Building Maintainable and Scalable Applications

  • Rahul Mittal
  • June 19, 2026
  • 5 min read

Introduction As software systems grow, code often becomes difficult to maintain, extend, and test. New features introduce unexpected bugs, small changes require modifications in multiple places, and development velocity gradually…

JVM, Memory Management & Exception Handling
  • interview
  • java
  • programming
  • spring

JVM, Memory Management & Exception Handling

  • Rahul Mittal
  • June 19, 2026
  • 8 min read

MCQs Q1. Which JVM memory area stores objects? A. Stack B. Heap C. Method Area D. Program Counter Q2. What is Garbage Collection? A. Memory Allocation B. Memory Cleanup of…

Interview Sets for Screening Java Developers
  • interview
  • java
  • programming
  • spring

Interview Sets for Screening Java Developers

  • Rahul Mittal
  • June 19, 2026
  • 8 min read

Introduction One of the biggest challenges while interviewing Java developers is maintaining consistency across candidates. Many interviewers ask different questions to different candidates, making comparison difficult. This interview handbook provides:…

10 Practical Java Interview Programming Exercises with Solutions, Logic and Complexity Analysis
  • interview
  • java
  • programming

10 Practical Java Interview Programming Exercises with Solutions, Logic and Complexity Analysis

  • Rahul Mittal
  • June 17, 2026
  • 4 min read

Introduction When interviewing Java developers, asking theoretical questions alone is rarely enough. The best interviews combine: Logical reasoning Problem-solving ability Understanding of loops and conditionals Character and string manipulation Collections…

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