New Topic

programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums

this forum made possible by our volunteer staff, including ...

Marshals:

Campbell Ritchie
Liutauras Vilda
Devaka Cooray
Jeanne Boyarsky
Bear Bibeault

Sheriffs:

Junilu Lacar
Paul Clapham
Knute Snortum

Saloon Keepers:

Ron McLeod
Tim Moores
Stephan van Hulst
salvin francis
Carey Brown

Bartenders:

Tim Holloway
Frits Walraven
Ganesh Patekar

Java in General

Stuff that is past the beginners stage

Important Links: Java FAQ

Best this year

Given a LinkedHashSet of anagrams, print each set of anagrams alphabetically and on a new line.

26 replies 5

Java in General

Implementing Model View Controller With Test Methodologies

35 replies 19 1

Does an "if" statement change the time complexity of function?

18 replies 1 2

Create my own object that works like an array

37 replies

* Welcome Josh Bloch

36 replies 2 1

Java in General

javafx not working in Java 10

8 replies 2

Java by Comparison: Any tip about best practices?

18 replies 6

Optional for method parameters

15 replies 7

Java in General

Implementing an algorithm using counters

100 replies

Java in General

Have an object communicate with another object

37 replies 1

Java in General

Design pattern: actor-role

26 replies 2 1

Java in General

Is it bad practice when an Object has to be aware of another Object?

41 replies 2

Java in General

Converting from List To Map?

18 replies 3

Java in General

What's new in Java - a quick overview

4 replies 6

Strange behavior with Base64Decode

14 replies 1 5

* Winners: Effective Java (3rd Edition)

18 replies 4 1

Java in General

I'm confused about frameworks still

40 replies 1

Upper and Lower Bounded Wildcard Question (Generics)

20 replies 3

* Welcome Ben Evans & David Flanagan

15 replies 2

Initialize elements of a sub-array without overwritting the first ones

21 replies 1

More »
Best this month

Create my own object that works like an array

37 replies

Strange behavior with Base64Decode

14 replies 1 5

* Welcome Ben Evans & David Flanagan

15 replies 2

Referencing more than one index in an if statement?

33 replies

Use "+" in preference to StringBuilder in Java 9 and later

8 replies 2

Cannot open Jar file on particular PC

28 replies 1 1

no class def error at runtime? Help!

12 replies 3

Deadline coming up in a few hours, can't figure out what I'm doing wrong

23 replies 5

Java in General

JSON Object Error

15 replies 1

Java in General

Have trouble understanding Synchronization

5 replies 1

Is this project too hard to take on?

10 replies

Counting no of common characters in String

17 replies

Comparing and contrasting collection classes

4 replies 1

OO design

40 replies

My arraylist is doesn't display the info

39 replies 2

Java in General

Newline character doesn't render in browser

11 replies

Checking original boolean, can this be done?

8 replies 1

Sorting a HashMap Based on a Value within a Class

8 replies

Java in a Nutshell - coverage

7 replies

How do I compare two ObservableLists?

17 replies

More »
Java in General Forum at JavaRanch

boosted thread

Blatant Advertising

Create and Convert PDF Using Free Spire.PDF with Java

4

Two for the price of one at Manning 14th Feb 2019

3 days ago 1 reply

Public Service Announcement: Java Is Still Free!

2 months ago 16 replies 2

How does the System.arraycopy() works?

3 months ago 3 replies

Formatting data into flie

3 months ago 26 replies

2D packing problem

3 months ago 5 replies

How to fix the NullPointerException?

3 months ago 6 replies 2

JPA EntityManager

3 months ago 2 replies

Why ArrayList causes java.lang.ArrayIndexOutOfBoundsException when multiple threads are adding Items

3 months ago 18 replies

JavaFX

JavaFX + Java11 respectively JDK11 + Eclipse Photon

3 months ago 9 replies

Java Send Mail with Multiple Addresses

3 months ago 4 replies

what is the meaning of .... in code ?

3 months ago 16 replies 1

String Concepts

3 months ago 4 replies

Spring Transaction Management - AOP Proxies

3 months ago 2 replies

Will java's recent decision to charge for JDK impact my work?

3 months ago 3 replies

Writing a class representing a vehicle object.

3 months ago 3 replies 1

How to check how much memory is used by a program??

3 months ago 10 replies

Object oriented dev

3 months ago 5 replies 1

Please help clear up my confusion of databases.

3 months ago 3 replies

Switch values using JSON

3 months ago 4 replies

EJB and other Jakarta/Java EE Technologies

Proper JavaBeans use - where to put server methods

3 months ago 1 reply

How to put values from JTable to double values

3 months ago 22 replies

Devops tools

3 months ago 2 replies

Java Code to determine if a String ends with a particular group of characters error. Help?

3 months ago 10 replies

Garbage Collection

3 months ago 12 replies

How to converte Object array in Double array

3 months ago 3 replies

Maven

Maven

3 months ago 11 replies

SOAP-CommandLine-POST-GET

3 months ago 2 replies

Does this example not prove that Java is not always pass by value?

3 months ago 4 replies

Is it bad practice when an Object has to be aware of another Object?

3 months ago 41 replies [ 1, 2 ] 2

Have an object communicate with another object

3 months ago 37 replies 1

Given a LinkedHashSet of anagrams, print each set of anagrams alphabetically and on a new line.

3 months ago 26 replies 5

Tracking of Widget changes (Embed Code) - HOW?

3 months ago 2 replies

Design Pattern (Bridge Design Pattern)

3 months ago 1 reply

Morocco drops time change

3 months ago 2 replies

Why 10 data missed, when I execute this code

3 months ago 1 reply
- ◄
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41-80
- 81-120
- 121-160
- 161-200
- 201-240
- 241-280
- 281-320
- 321-360
- 361-400
- 401-440
- 441-480
- 481-520
- 521-560
- 561-600
- 601-640
- 641-680
- 681-720
- 721-760
- 761-800
- 801-840
- 841-880
- 881-920
- 921-960
- 961-1000
- 1001-1040
- 1041-1080
- 1081-1120
- 1121-1160
- 1161-1200
- 1201-1240
- 1241-1280
- 1281-1320
- 1321-1360
- 1361-1400
- 1401-1440
- 1441-1480
- 1481-1520
- 1521-1560
- 1561-1584
- ►
Forum leaders: Junilu Lacar Campbell Ritchie Stephan van Hulst
Java
- Beginning Java 366605
- NIO2 and Try with Resources 226
- Lambdas and Streams 4478
- Jigsaw and Modules 598
- Servlets 128647
- JSP 109318
- JSF 40083
- EJB and other Jakarta/Java EE Technologies 63217
- Web Services 44119
- Swing / AWT / SWT 114549
- Sockets and Internet Protocols 18240
- Threads and Synchronization 27036
- Performance 15399
- I/O and Streams 28694
- Other JSE/JEE APIs 18896
- Game Development 4655
- Distributed Java 9807
- Portals and Portlets 5493
- SOA and ESB 235
- JNLP and Web Start 2702
- JavaFX 6033
- Applets 20564
- Graphics and 3D Programming 191
- Unified Printing API - JSR6 26
- Bluetooth - JSR82 28
- Other JSRs 63

What do the icons mean:

= Topic with 1 to 5 flags
= Topic with 5 or more flags
= Topic with 10 or more flags
= Topic with unread post(s)