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

Help building an infinite mail sender

2 years ago 7 replies

Reset Input Stream

2 years ago 4 replies

Convert Java source to PDF

2 years ago 5 replies

I need to convert 2d array in List or arraylist

2 years ago 6 replies

General Computing

prunsrv and java 8

2 years ago 2 replies

Best way to monitor a running java executable in a prod server

2 years ago 3 replies

Window doesn't repaint properly unitil window resized manually

2 years ago 2 replies

Decrement problem

2 years ago 22 replies

Why is exception not thrown when the connection is terminated?

2 years ago 2 replies

Not understandable error message

2 years ago 7 replies

Getting File Not Found Exception

2 years ago 8 replies

Retrieving Value from Array as [cnt % arrayvariable.length]

2 years ago 1 reply

Want to access the Composer object from the Composed object.

2 years ago 10 replies

How can get Implementation class name based on interface object in java

2 years ago 1 reply

manipulating a string

2 years ago 7 replies

Calculator

2 years ago 1 reply

ParallelIterator?

2 years ago 2 replies

jdbc

2 years ago 1 reply

My multithreaded program is giving Java out of memory error when run on large data

2 years ago 9 replies

NullPointerException

2 years ago 6 replies

implicit return?

2 years ago 24 replies

Replace multiple duplicate values of hashmap

2 years ago 7 replies

Is there any naming convention for keys in a Map in Java

2 years ago 3 replies

Multilangual PDF Creation(in all indian languages)

2 years ago 5 replies

compare the source code in SVN with a target server that has the source at rest

2 years ago 2 replies

HttpURLConnection

2 years ago 9 replies

Java Native Interface (JNI)

2 years ago 3 replies

String parsing APIs help

2 years ago 2 replies

Open Office 1.1.4 Export to PDF with background images

2 years ago 1 reply

How to code for deleting and finding an item on a list?

2 years ago 16 replies

Transfert number from an arraylist in an array in another class

2 years ago 3 replies

Windows username?

2 years ago 15 replies

How to differentiate between the date formats "mm/dd/yyyy" OR "dd/mm/yyyy"

2 years ago 9 replies

Load jar from different locations

2 years ago 9 replies

Java Concurrency Doubt

2 years ago 5 replies
- ◄
- 1-40
- 41-80
- 81-120
- 121
- 122
- 123
- 124
- 125
- 126
- 127
- 128
- 129
- 130
- 131
- 132
- 133
- 134
- 135
- 136
- 137
- 138
- 139
- 140
- 141
- 142
- 143
- 144
- 145
- 146
- 147
- 148
- 149
- 150
- 151
- 152
- 153
- 154
- 155
- 156
- 157
- 158
- 159
- 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 342206
- 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

Help building an infinite mail sender

Reset Input Stream

Convert Java source to PDF

I need to convert 2d array in List or arraylist

prunsrv and java 8

Best way to monitor a running java executable in a prod server

Window doesn't repaint properly unitil window resized manually

Decrement problem

Why is exception not thrown when the connection is terminated?

Not understandable error message

Getting File Not Found Exception

Retrieving Value from Array as [cnt % arrayvariable.length]

Want to access the Composer object from the Composed object.

How can get Implementation class name based on interface object in java

manipulating a string

Calculator

ParallelIterator?

jdbc

My multithreaded program is giving Java out of memory error when run on large data

NullPointerException

implicit return?

Replace multiple duplicate values of hashmap

Is there any naming convention for keys in a Map in Java

Multilangual PDF Creation(in all indian languages)

compare the source code in SVN with a target server that has the source at rest

HttpURLConnection

Java Native Interface (JNI)

String parsing APIs help

Open Office 1.1.4 Export to PDF with background images

How to code for deleting and finding an item on a list?

Transfert number from an arraylist in an array in another class

Windows username?

How to differentiate between the date formats "mm/dd/yyyy" OR "dd/mm/yyyy"

Load jar from different locations

Java Concurrency Doubt

Java