New Topic

programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums

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

Marshals:

Sheriffs:

Saloon Keepers:

Bartenders:

Java in General

Stuff that is past the beginners stage

Important Links: Java FAQ

Best this year

* Welcome Allen B. Downey & Chris Mayfield

27 replies

HashMap implementation

15 replies 1

Reconciling Java date/time with GPS times and leap seconds

10 replies 1

Java in General

Which way of learning as developer do you prefer, video tutorials or reading a book?

30 replies 1

Is while (1) loop possible in Java ?

12 replies 1

Total Loaded Classes is Increasing During Runtime according to JVisualVM

5 replies 2

How can I get this algorithm to work correctly ?

19 replies 3 1

Connected Graph using Adjacency Matrix

47 replies 10

java challange

35 replies 1

Having problems reading data from a file and filling an ArrayList

25 replies 2 1

Switch Case and enum

49 replies 5

Why prefer char[] over String for password?

46 replies 1 11 3

Teaching Java and OOP

59 replies 2

Java String has an extra space and the file starts with ÿþ

15 replies 1

Java in General

Building my own computer and compiler

60 replies 1

How to structure a class with optional parameters

44 replies 2

getBytes() with UTF-8 and UTF-16

13 replies 3 1

Relationship of Comparable and Comparator interfaces in Java.

35 replies 3

Java in General

Store String and array of digits

48 replies 2

Does this feature exist? (returning downcasted object by method's argument or diamond interface)

9 replies 3

More »
Best this month

Does this feature exist? (returning downcasted object by method's argument or diamond interface)

9 replies 3

REGEX pattern

29 replies 1

Why should these interfaces not inherit from each other?

17 replies 1

JTable to Direct Email (not as an attachment?)

34 replies

Unresolved Compilation Problem

9 replies 2

Split variables+its values from txt files the store into arrayList

22 replies

Java in General

What happens with all the new Java9 books if Jigsaw isn't going to make it in Java9

5 replies 1

Storing data in an arraylist

17 replies

Java in General

What is the good practice of java heap ?

16 replies

Java in General

Timeout affects another test

6 replies 1

Java in General

Finding the time taken for program to execute

9 replies 1

print only the single and multiple line comments when reading a java sample code

37 replies

Java in General

Encapsulation and GUI

13 replies

javax.persistence.Entity doesn't exists

1 reply 1

String pool and the new operator question

5 replies 1

Intro, book(s) question, another language assistance, and final vague question

7 replies

reading text file with specific format

13 replies

polymorphic computer player: an abstract class with an abstract method

6 replies

How to run a task every month using Java

13 replies

Inconsistency in hashmap output

15 replies

More »
Java in General Forum at JavaRanch

java objects and array help

1 year ago 2 replies

Eclipse display HTML format --> JAR display TXT format

1 year ago 2 replies

Design Pattern for Proxy Redirects with Multiple Websites Pulling in Data from a Central Website?

1 year ago 5 replies

jar package unable to find file

1 year ago 5 replies

How shadowing works for primitive variables

1 year ago 1 reply

How to generate xml files from xsd?

1 year ago 6 replies

Other Open Source Projects

X3D files won't load with a URL

1 year ago 11 replies

What is a compile time constant?

1 year ago 5 replies

insert time only in database from JSpinner

1 year ago 22 replies 2

Source Forge & GitHub

1 year ago 2 replies

Desktop application security after installing to client machine to avoid copying

1 year ago 12 replies

creating a file change listener

1 year ago 17 replies

Question to Cay Horstmann on Lambda expressions

1 year ago 13 replies 2

Is it possible to access HashMap data in one application from another Java application?

1 year ago 14 replies

Unit Test a Sample Kafka Consumer and returned messages for a topic

1 year ago 1 reply

splitting loop to write out to multiple files.

1 year ago 8 replies

Running through for each loops

1 year ago 3 replies

Garbage Collection

1 year ago 7 replies

how to give permission to a file when a new one is generated each time

1 year ago 4 replies

Reentrant Locks

1 year ago 12 replies

calling methods directly without creating an object first？

1 year ago 8 replies

Calling method of a class which is locked

1 year ago 3 replies

Fail Fast Design Pattern

1 year ago 4 replies 1

maven sonar how to create test class for unit testing using jacoco

1 year ago 3 replies

Problems with this piece of code, help would be appreciated

1 year ago 5 replies

Truncated stack trace

1 year ago 16 replies

IO streram or encoding issue?

1 year ago 12 replies

Java PrintWriter class

1 year ago 14 replies

Class Reloading/Unloading

1 year ago 7 replies

Regular Expression for checking a valid email address

1 year ago 6 replies

right syntax with !equals in Java

1 year ago 7 replies

Is it possible to load a class multiple times with the URLClassLoader?

1 year ago 2 replies

How to write better software

1 year ago 7 replies 1
- ◄
- 1-40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
- 64
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 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
- 1481-1518
- ►
Forum leaders: Vijitha Kumara Rob Spoor Stephan van Hulst
Java
- Servlets 127474
- JSP 108660
- Beginning Java 342205
- Features new in Java 7 1901
- Features new in Java 8 3263
- Features new in Java 9 103
- JSF 39697
- EJB and other Java EE Technologies 62392
- Web Services 42981
- Swing / AWT / SWT 110751
- Sockets and Internet Protocols 17421
- Threads and Synchronization 26119
- Performance 15013
- I/O and Streams 27693
- Other JSE/JEE APIs 18565
- Game Development 4295
- Distributed Java 9719
- Portals and Portlets 5489
- SOA and ESB 226
- JNLP and Web Start 2677
- JavaFX 3848
- Applets 20418

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)

Java in General

Best this year

* Welcome Allen B. Downey & Chris Mayfield

HashMap implementation

Reconciling Java date/time with GPS times and leap seconds

Which way of learning as developer do you prefer, video tutorials or reading a book?

Is while (1) loop possible in Java ?

Total Loaded Classes is Increasing During Runtime according to JVisualVM

How can I get this algorithm to work correctly ?

Connected Graph using Adjacency Matrix

java challange

Having problems reading data from a file and filling an ArrayList

Switch Case and enum

Why prefer char[] over String for password?

Teaching Java and OOP

Java String has an extra space and the file starts with ÿþ

Building my own computer and compiler

How to structure a class with optional parameters

getBytes() with UTF-8 and UTF-16

Relationship of Comparable and Comparator interfaces in Java.

Store String and array of digits

Does this feature exist? (returning downcasted object by method's argument or diamond interface)

Best this month

Does this feature exist? (returning downcasted object by method's argument or diamond interface)

REGEX pattern

Why should these interfaces not inherit from each other?

JTable to Direct Email (not as an attachment?)

Unresolved Compilation Problem

Split variables+its values from txt files the store into arrayList

What happens with all the new Java9 books if Jigsaw isn't going to make it in Java9

Storing data in an arraylist

What is the good practice of java heap ?

Timeout affects another test

Finding the time taken for program to execute

print only the single and multiple line comments when reading a java sample code

Encapsulation and GUI

javax.persistence.Entity doesn't exists

String pool and the new operator question

Intro, book(s) question, another language assistance, and final vague question

reading text file with specific format

polymorphic computer player: an abstract class with an abstract method

How to run a task every month using Java

Inconsistency in hashmap output

Java in General Forum at JavaRanch

java objects and array help

Eclipse display HTML format --> JAR display TXT format

Design Pattern for Proxy Redirects with Multiple Websites Pulling in Data from a Central Website?

jar package unable to find file

How shadowing works for primitive variables

How to generate xml files from xsd?

X3D files won't load with a URL

What is a compile time constant?

insert time only in database from JSpinner

Source Forge & GitHub

Desktop application security after installing to client machine to avoid copying

creating a file change listener

Question to Cay Horstmann on Lambda expressions

Is it possible to access HashMap data in one application from another Java application?

Unit Test a Sample Kafka Consumer and returned messages for a topic

splitting loop to write out to multiple files.

Running through for each loops

Garbage Collection

how to give permission to a file when a new one is generated each time

Reentrant Locks

calling methods directly without creating an object first？

Calling method of a class which is locked

Fail Fast Design Pattern

maven sonar how to create test class for unit testing using jacoco

Problems with this piece of code, help would be appreciated

Truncated stack trace

IO streram or encoding issue?

Java PrintWriter class

Class Reloading/Unloading

Regular Expression for checking a valid email address

right syntax with !equals in Java

Is it possible to load a class multiple times with the URLClassLoader?

How to write better software

Java