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00: Top 50+ Core Java interview questions answered – Q1 to Q10

These are must know Java interview FAQs. If you don’t get these Java interview questions right, you will not be getting an offer.

Q1. What is the difference between “==” and …



00: Top 50+ Core Java interview questions answered – Q11 to Q23

The focus is on Java OOP interview questions and answers. Q11. What is the difference between constructors and other regular methods? A11. Constructors must have the same name as the class …



00: Top 50+ Core Java interview questions answered – Q24 to Q36

Focus is on Java classes, interfaces and generics the interview questions and answers style. Java classes and interfaces are the building blocks. Q24. What happens when a parent and a child …



00: Top 50+ Core Java interview questions answered – Q37 to Q42

As a Java developer, you may not need to know how the JVM works, but the most important topic that you must know is Java Garbage Collection. How the Garbage Collection …



00: Top 50+ Core Java Interview questions answered – Q43 to Q54

Q43. What can you tell about the performance of a HashMap compared to a TreeMap? Which one would you prefer? A43. A balanced tree does have O (log n) performance. The …



02: 10 Java String class interview Q&As

Java Collection interview questions and answers and Java String class interview questions and answers are must know for any Java developer as these two APIs are the most frequently used in …



02: 5 Java multithreading scenarios interview

Java interview questions & answers on multithreading scenarios to judge your experience in building applications with concurrency in mind. Q1. Can you give some scenarios where you built concurrent systems? A1. …



15+ Java beginner multithreading interview Q&As

Q1. What is a thread?
A1. It is a thread of execution in a program. The JVM (i.e. process) allows an application to have multiple threads of execution running concurrently. …



17 FAQ Java Collection interview Q&As

Java Collections interview questions and answers and Java String class interview Q&As are must know as you can’t write any decent Java application without these 2 APIs. This post focuses on …



6 Java Modifiers every interviewer likes to Quiz you on

Java modifiers like final, finally, const, volatile, transient and finalize are very popular with the job interviewers. You will see why because of the possible drill down questions.

Q1. What …



Java Generics in no time “? extends” & “? super” explained with a diagram

Generics in Java can be be a bit tricky to get your head around. Hope the explanation below enhances your understanding of generics. This complements 5 Java generics interview Q&As with …



Q1 – Q10 Java OOPs interview Q&As

If you don’t get Java OOPs interview questions & answers right in the job interviews you can say OOPS !!!! to your Java interview success. Q1. Is Java a 100% Object …



300+ Java Interview FAQs

800+ Java Interview Q&As

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