Java Keywords Interview Guide: Questions & Answers Explained
In this video, we go through 20 essential Core Java keywords that every developer should know. These questions often appear in Java interviews and are fundamental for understanding how Java works.
We explain the differences, use cases, and examples for each keyword in a clear and beginner-friendly way — ideal for developers with 1, 3, or 5 years of experience.
Topics covered:
final vs finally vs finalize
static, this, super
volatile, transient, synchronized
throw vs throws
Abstract classes vs interfaces
Access modifiers: public, private, protected, default
native, strictfp, assert
Whether you are preparing for a Java interview or just refreshing your core Java knowledge, this video will help you strengthen your fundamentals and feel confident answering interview questions.
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Timestamps:
0:00 What is the difference between final, finally, and finalize?
0:49 What is the static keyword in Java?
1:23 What is the this keyword in Java?
2:00 What is the super keyword in Java?
2:24 What is the volatile keyword and when is it used?
2:59 What is the transient keyword in Java?
3:32 What is the synchronized keyword and how does it work?
4:08 What is the difference between throw and throws?
4:35 What is the difference between break, continue, and return?
5:03 What is the try-catch-finally block used for?
5:28 What is the try-with-resources statement?
6:00 What is the difference between extends and implements?
6:35 What is the difference between an abstract class and an interface?
7:13 What is the instanceof keyword used for?
7:35 What is the difference between public, protected, private and default?
8:00 What is the difference between switch and if-else?
8:35 What is the default keyword used for in a switch statement?
8:45 What is the strictfp keyword in Java?
9:25 What is the assert keyword used for?
9:52 What is the native keyword in Java?