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Java /
JDK, JRE, JVM, JIT
OOPS Concepts and its implementation in Java (19)
Inheritance (29)
JDK, JRE, JVM, JIT (69)
Java Identifiers (4)
Object, Class and Package (44)
Variable (9)
Local Variables (6)
Instance Variables (Non Static Variables) (3)
Class Variables (Static Variables) (13)
Package (10)
Operators (9)
Modifiers (29)
Data types (10)
Methods (39)
Control Statements (14)
Access Modifiers (5)
Constructor (38)
Interface (46)
Abstract Class (19)
Enum (20)
Arrays (20)
Strings (32)
Using String (29)
Exception (55)
Collections (56)
List and its implementations (22)
Map and its implementations (39)
Set and its implementations (23)
Queue and its implementations (4)
Regular expressions (3)
Design Patterns (75)
Generics (20)
Casting (5)
volatile (13)
Java ThreadLocal (10)
Java Multithreading (113)
Java Multithreading part II (18)
final keyword (13)
static keyword (16)
Java Transactions (JTA) (21)
Concurrent collections (55)
Java Serialization (36)
JDBC (53)
JNDI (17)
RMI (6)
JAXB (10)
JMS (45)
JMX (9)
Servlet Interview Questions (16)
log4j (19)
Annotations (10)
XML (14)
Garbage collection (31)
Programs (8)
JVM (4)
Java8 streams (34)
JavaFX (6)
Autosys Interview questions (21)
The Java Virtual Machine: How and What Is It Used For? (0)
Java 11 (10)
Java 12 (5)
Top Errors You Should Avoid when Studying Programming (0)
Java 17 (1)
JPMS (6)
Java Record Keyword (4)
MapStruct Java Interview questions (0)
Java 21 Interview Questions (46)
Lombok Interview questions (48)
Quarkus Interview questions (50)
Robust.
highly supported language and portable,
Strongly typed language,
Memory Management,
Garbage Collection,
Exception Handling,
No pointers.
More Related questions...
Architectural-neutral.
What is High level language?
What is Java?
Three flavors of Java.
Difference between JDK, JRE and JVM.
Interpreted.
Features of Java. (or) Java buzzwords.
Java is object oriented.
Is Java a WORA?
Java is Simple.
Java is Platform independent.
How many types of memory areas are allocated by JVM?
What is the latest version of Java?
What is Write Once, Run Anywhere (WORA)?
What is a Platform?
Is Java a pure/fully object oriented language?
Secured.
What is bytecode?
Portable.
Robust.
Dynamic.
High-performance.
Multithreaded.
Distributed.
What is classloader?
Types of classloader.
What is Heap space in Java?
Default heap size in Java.
What is Java Memory Model?
What are the new features introduced in Java 8?
Difference between EAR, JAR and WAR file in J2EE.
Explain memory leak in Java.
How Garbage collection works in Java?
What are the GC roots in Java?
Types of memory leaks in Java.
How do you diagonise memory leaks in Java?
Difference between Stack and Heap memory in Java.
Does Java garbage collector cleans both heap and stack memory?
Why garbage collection is required in Java?
How GC does not affect Java program's performance?
Different categories of GC algorithm.
List the available GC algorithms in Java.
What is the default GC collector in Java 8?
What are types of reference in Java?
Explain strong reference type in Java.
Explain weak reference type in Java.
Explain Serial Garbage Collector in Java.
Explain Parallel Garbage Collector in Java.
Explain CMS Garbage Collector in Java.
Explain G1 Garbage Collector in Java.
What is soft reference in Java?
What is phantom reference in Java?
Explain the javap command in Java.
What is PermGen in Java?
What is metaspace in JDK 1.8?
Explain the usage of MetaspaceSize parameter in Java 8.
Difference between permgen and metaspace in Java.
New features introduced in Java 1.7.
How do I load Jars dynamically at runtime?
What is synthetic construct in Java?
New changes introduced in Java 9.
What is jshell tool in Java 9?
Difference between Java.exe and Javaw.exe.
What is Nashorn in Java8?
How do I debug to see when class is loaded in jvm?
Mention Java features designed to improve application security.
Mention few security Libraries that Java platform supports.
Mention few advanced coding concepts in Java for security considerations.
Show more question and Answers...
Java Identifiers
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OOPS Concepts and its implementation in Java
19
Inheritance
29
JDK, JRE, JVM, JIT
69
Java Identifiers
4
Object, Class and Package
44
Variable
9
Local Variables
6
Instance Variables (Non Static Variables)
3
Class Variables (Static Variables)
13
Package
10
Operators
9
Modifiers
29
Data types
10
Methods
39
Control Statements
14
Access Modifiers
5
Constructor
38
Interface
46
Abstract Class
19
Enum
20
Arrays
20
Strings
32
Using String
29
Exception
55
Collections
56
List and its implementations
22
Map and its implementations
39
Set and its implementations
23
Queue and its implementations
4
Regular expressions
3
Design Patterns
75
Generics
20
Casting
5
volatile
13
Java ThreadLocal
10
Java Multithreading
113
Java Multithreading part II
18
final keyword
13
static keyword
16
Java Transactions (JTA)
21
Concurrent collections
55
Java Serialization
36
JDBC
53
JNDI
17
RMI
6
JAXB
10
JMS
45
JMX
9
Servlet Interview Questions
16
log4j
19
Annotations
10
XML
14
Garbage collection
31
Programs
8
JVM
4
Java8 streams
34
JavaFX
6
Autosys Interview questions
21
The Java Virtual Machine: How and What Is It Used For?
Java 11
10
Java 12
5
Top Errors You Should Avoid when Studying Programming
Java 17
1
JPMS
6
Java Record Keyword
4
MapStruct Java Interview questions
Java 21 Interview Questions
46
Lombok Interview questions
48
Quarkus Interview questions
50
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