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Best this year

Beginning Java

What difference exactly will come for this case if I override hashcode and equals?

191 replies 1

Beginning Java

Better code for interview question list duplicate characters in a String

92 replies 7

Beginning Java

Proper code format with if/else

57 replies

Beginning Java

Is linked list rarely used in comparison to arrayList?

64 replies 1

Beginning Java

filters

100 replies

Beginning Java

How String constructor work exactly when pass Array?

41 replies 1

Beginning Java

Mooc.fi Part 6 Exercise 9 SimpleDictionary

30 replies 5 3

Beginning Java

Trying to understand the Liskov principle

43 replies

Beginning Java

Are ArrayList and HashMap the most used collections?

49 replies 2

Beginning Java

Sum of two numbers

46 replies

Beginning Java

post operator vs pre operator

17 replies 4

Beginning Java

Iterate and delete TWO items without concurrent modification exception...

36 replies 1

Beginning Java

Should Course class maintained the list of enrolled student in terms of Single responsibility ?

28 replies 1

Beginning Java

Getters and Setters to store user input

76 replies

Beginning Java

How exactly can the interface be used to hide the implementation from the client?

41 replies 1

Beginning Java

java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver

40 replies 3 1

Beginning Java

Sorting an array question?

45 replies

Beginning Java

pattern matching issue when validating String input

53 replies 1

Beginning Java

Create a phone book.

24 replies

Beginning Java

Find longest substring without repeating characters: logic fails in some cases

25 replies 2

More »
Best this month

Beginning Java

Semantics of Singleton instantiation

23 replies

Lambdas and Streams

Streams vs loops Isnt it better to use loops in nearly all cases

18 replies 2

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Most recent

EJB and other Jakarta/Java EE Technologies

e: A JTA EntityManager cannot use getTransaction()

2 weeks ago 6 replies

Java in General

Reactive approach while adding a reactive library

3 weeks ago 1 reply

Java in General

Java converting Date to 100 years back

3 weeks ago 27 replies

JavaFX

Is JavaFX a failed project?

3 weeks ago 7 replies

Game Development

Icon change color when Player is online

3 weeks ago 1 reply

JavaFX

Exception in Application start method - Location is not set

3 weeks ago 1 reply 3

Swing / AWT / SWT

Resizing panels in borderlayout

3 weeks ago 6 replies 2

Beginning Java

Unsure of how to check for exceptions and input while appending to CSV. Guidance needed

3 weeks ago 2 replies

Beginning Java

Issues using MergeSort with an object array pulled from a CSV file. Null Pointer Exceptions. Solved

3 weeks ago 10 replies 1

Beginning Java

Syntax error on token "module", module expected" error

3 weeks ago 7 replies 1

Java in General

Are you using JDK11(LTS) or still using JDK8?

3 weeks ago 8 replies

Graphics and 3D Programming

How to wrap a constructor in a default constructor. (Am I saying this wrong?)

3 weeks ago 2 replies

JavaFX

Why I have to add VM options for Java FX to work?

3 weeks ago 1 reply

Beginning Java

How to do this HackerRank question - 2D array ?

3 weeks ago 20 replies

Java in General

Why for-loop is not running entirely and losing data. KEY of the hashtable is not deleted?

3 weeks ago 6 replies

Threads and Synchronization

Why current code executes only Thread name First in code here

3 weeks ago 2 replies

Java in General

Why can't local class be declared as static?

3 weeks ago 10 replies

Java in General

Delete method not deleting hard coded books

3 weeks ago 30 replies 1

Java in General

Prime Distinct Factors Confusion

3 weeks ago 3 replies

Servlets

how to read through directory and subdirectory under WebContent ?

3 weeks ago 1 reply

Java in General

Qualified Name in Java

4 weeks ago 0 replies

JSF

Problem to use PrimeFaces - no taglibrary exists for that namespace.

4 weeks ago 13 replies

Java in General

Issue with filename in log4j2 rolling file appender

4 weeks ago 0 replies

Java in General

Get printer make and model

4 weeks ago 6 replies

I/O and Streams

Apache Commons: IOUtils.write - how to restrict bytes-stream during write

4 weeks ago 1 reply

Beginning Java

Can not get my program to loop, and my top row is "null"

4 weeks ago 7 replies

Java in General

ArrayList of objects is giving me an exception

4 weeks ago 9 replies

Beginning Java

How to create enumerated constant/type or Enums in Java.?

1 month ago 2 replies

Java in General

static code analysis to find dead code, which takes multiple projects into account?

1 month ago 1 reply
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Java

Beginning Java 390050

Java in General 291197

NIO2 and Try with Resources 250

Lambdas and Streams 5540

Jigsaw and Modules 748

Servlets 129556

JSP 110234

JSF 40530

EJB and other Jakarta/Java EE Technologies 63541

Web Services 45138

Swing / AWT / SWT 117449

Sockets and Internet Protocols 18628

Threads and Synchronization 27701

Performance 15510

I/O and Streams 29108

Other JSE/JEE APIs 19107

Game Development 5042

Distributed Java 9850

Portals and Portlets 5495

SOA and ESB 237

JNLP and Web Start 2712

JavaFX 7723

Applets 20600

Graphics and 3D Programming 304

Unified Printing API - JSR6 26

Bluetooth - JSR82 28

Other JSRs 89