Java Interview Preparation || 100+ Quality Questions Covered

Core Java, Java 8, Collection, Design Patterns, Exception Interview Questions

Created byInfybuzz Learning

Last updated 11/2024

English

What you'll learn

Core Java Interview Questions
Java 8 Interview Questions
Collection Interview Questions
Design Pattern Interview Questions
Exception Interview Questions

Course content

10 sections • 106 lectures • 2h 24m total length

Introduction0:53
Practice Code0:04

What is JVM, JRE and JDK ?1:54
Explain how the Java virtual machine runs bytecode, how the JRE bundles the JVM and libraries to run programs, and how the JDK adds development tools like the compiler.
Difference between Path and Classpath1:44
Is Java platform independent ? Why ?1:46
Difference between Java and C++1:39
What if I write static public void instead of public static void ?0:01
Explain Access Modifiers in Java.0:10

Explain OOPs Concepts With Real Time Examples4:16
How to prevent inheritance and method overriding ?2:42
Can we declare main method as final ?2:18
Is Multiple inheritance supported in Java ? Why ?3:37
Execution sequence for static block, block, constructor and method.3:26
Can we run abstract class which has main method ?1:47
Discover how to run a public static void main inside an abstract class in Java. Understand that abstract classes can include concrete methods and still be executed.
What is Marker Interface ?2:14
Difference between an Interface and Abstract Class0:21
Can we override a static method ?0:02
Can we make constructors static ?0:12
Can we override the overloaded method ?0:02
Can we override the private methods ?0:06
Difference between Constructor and Method ?0:12
Can we execute a program without main() method ?0:02
Can you use abstract and final both with a method ?0:04
Can we declare a constructor as final ?0:07
Can we declare an interface as final ?0:10
Distinguish between static loading and dynamic class loading ?0:07

Difference between List and Set5:43
Explore the difference between list and set in Java. Lists allow duplicates and preserve insertion order, while sets enforce unique values.
Unmodifiable Collcetion1:42
What is UnSupportedOperationException ?2:07
Explore how the Java unsupported operation exception works, and see how unmodifiable lists and read-only collections throw when you try to add or remove elements in Eclipse.
Difference between peek(),poll() and remove() method of the Queue interface.6:07
How HashMap internally works ?0:18
How HashSet works internally ?0:05
Difference between ArrayList and Vector0:28
Difference between HashMap and HashTable0:16
Difference Between Iterator And Enumeration0:09
Difference between Iterator and ListIterator0:11
Difference between Fail Fast iterator and Fail Safe iterator0:16
How Fail Fast Iterator come to know that the internal structure is modified ?0:15
Difference between HashSet and TreeSet0:06
Difference between HashMap and ConcurrentHashMap0:07
Difference between ArrayList and LinkedList0:16
Why Map interface does not extend the Collection interface ?0:16
What is hash-collision ? How it is handled in Java ?0:07
How do you convert a given Collection to SynchronizedCollection ?0:02
Why ArrayList is better than Arrays ?0:02
For addition and deletion. Which one is most preferred ArrayList or LinkedList ?0:03
For searches. Which one is most preferred: ArrayList or LinkedList ?0:02
Difference between Array and ArrayList.0:09
Explain TreeMap.0:08
Difference between HashMap and TreeMap0:10
What is the difference between Collection and Collections ?0:09

Introduction To Java 81:29
What is Functional Interface ?6:04
What is Lambda Expression ?3:42
What is Stream API ?8:01
What is Optional ?3:42
What is StringJoiner ?5:31
Difference between Collection API and Stream API0:27
What kind of variable you can access in an lambda expression ?0:08
Difference between Iterator and Spliterator0:13
Differences between Java’s OLD Date API and Java 8’s Date and Time API0:12

In how may ways we can create an object in Java ?3:45
What is Ternary Operator ?3:19
Explore the ternary operator in Java as a compact conditional using a boolean condition with ? and : to select 'greater than zero' or 'less than zero'.
What is the purpose of a Volatile Variable ?0:05
What is Externalizable ?0:03
What is the difference between a static and a non-static inner class ?0:06
What are order of precedence and associativity, and how are they used ?0:05
What is the difference between inner class and nested class ?0:07
Difference between StringBuffer and StringBuilder0:03
this() Vs super()0:09
Can you use this() and super() both in a constructor ?0:05
Difference between flush() and close()0:10
What is anonymous inner class ?0:10
What is Classloader in Java ?0:06
Explain Annotation0:16
How many times does garbage collector calls the finalize() method for object ?0:03
Can the Garbage Collection be forced by any means ?0:06
Why java is not 100% Object Oriented ?0:04
Difference between a break statement and a continue statement0:05
Difference between equals and ==0:06
Difference between Comparable and Comparator0:17
What is Java instanceOf operator ?0:07
What is Synchronization ?0:24
What is the disadvantage of Synchronization ?0:08
Difference between Inheritance and Composition0:06
Difference between aggregation and composition0:06
What is Producer and Consumer problem ?0:46
Difference between Serializable and Externalizable interface0:19

Requirements

Need to have basic idea of core Java

Description

***** Some Reviews From Students *****

" Great explanations on questions. "

Welcome to Java Interview Preparation Course. This course will help you to crack your next Java interview.

This course will help you to crack your next Java Interview by brushing up your Java knowledge.

You will get clarifications of Java concepts from basic to advanced such as -

Java Platform - JVM, JRE, JDK
Java 8 Interview Questions - Functional Interface, Lambda Function, Stream API, Optional
OOPs concepts - Inheritance, Polymorphism, Abstraction, Encapsulation
Exception
Collection
Design Patterns - Singleton Design Pattern, Factory Design Pattern

Who this course is for:

Anyone who has basic idea of core Java

Java Interview Preparation || 100+ Quality Questions Covered

What you'll learn

Explore related topics

Course content

Introduction2 lectures • 1min

Java Basics6 lectures • 7min

OOPs Concepts18 lectures • 22min

Exception7 lectures • 10min

Collection25 lectures • 19min

Design Pattern5 lectures • 23min

Java 8 Interview Questions10 lectures • 29min

Serialization4 lectures • 20min

Other Questions27 lectures • 11min

Thank You...2 lectures • 1min

Requirements

Description

Who this course is for: