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Best this year

Beginning Java

Why are beginners not familiar with Streams?

34 replies 3

Java in General

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

26 replies 5

Programming Diversions

Advent of Code 2018

122 replies 1 9

Beginning Java

Write the code of program Room?

138 replies 4

Java in General

Create my own object that works like an array

44 replies 1

Code Reviews

My version of Conway's Game of Life

116 replies 3 16

Programmer Certification (OCPJP)

New Java SE 11 based certification exams released today !

45 replies 3

Programmer Certification (OCPJP)

* Welcome Kathy Sierra, Bert Bates, & Elisabeth Robson

45 replies 1

Beginning Java

Help with a Method moveToLocation (Vehicle Class)

36 replies 1 3

Beginning Java

How to check part of a string?

81 replies 12

Beginning Java

* Welcome Peggy Fisher

27 replies 4 8

Associate Certification (OCAJP 7/8)

This code is not acting the same way in NetBeans

129 replies 2

Programmer Certification (OCPJP)

Stream min and max methods

24 replies 3

Beginning Java

Print the position of the array in the output rather than the values

28 replies 2

Beginning Java

Reviews or feedback of basic java programs

29 replies 1

Beginning Java

Syntax error, insert ";" to complete FieldDeclaration

34 replies 1 1

Lambdas and Streams

Beware: three parameter Stream.iterate method might fall one short

22 replies 7

Beginning Java

OOP, what is an Object?

58 replies 3 4

Beginning Java

Using Comparator to sort HashMap with ArrayList values

40 replies 1

Beginning Java

Is the functional programming syntax of Java less self explanatory then the old syntax?

60 replies 4

More »
Best this month

Programmer Certification (OCPJP)

OCA/OCP (Sybex) Ch.08 Question 35 Answer is irritating

13 replies

Programmer Certification (OCPJP)

Study tips for 1Z0-815

14 replies

Programmer Certification (OCPJP)

Sybex OCP Java 8 Study Guide: p557 query (possible erratum?)

11 replies

Programmer Certification (OCPJP)

OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide Chapter 3 Question 25

4 replies

Testing

better way of returning element

10 replies 1

Beginning Java

Importance of Inheritance and when to use Getters and Setters

15 replies 4

Beginning Java

Java Operators and Precedence, Evaluation Order

13 replies 3

Beginning Java

LocalDate objects how to check if a start and end Date overlaps with another?

9 replies 2

Beginning Java

no exeception is raised

13 replies

Beginning Java

Annotation not converting results to JSON

7 replies 1

Beginning Java

Modulus (%) not working as supposed to

12 replies

Beginning Java

Word Finder

31 replies

Beginning Java

Substrings

16 replies

Beginning Java

Find powerset of numbers up to a given number

25 replies

Associate Certification (OCAJP 7/8)

Override equals method

16 replies

Beginning Java

Do returned values from methods need to be saved in static variables?

8 replies

Associate Certification (OCAJP 7/8)

equals method

9 replies 1

Beginning Java

Design Help Requested

15 replies 1

Associate Certification (OCAJP 7/8)

Syntax java

4 replies

Beginning Java

Switch statement: Illegal start of expression (huh?!)

10 replies

More »
Most recent

Architect Certification (OCMJEA)

Passed OCMJEA 1Z0-807, 1Z0-865, 1Z0-866

1 week ago 4 replies

Java in General

Production and Distribution Network - Student Project

1 week ago 5 replies 1

Beginning Java

Android 8 not display my ListView

1 week ago 0 replies

Beginning Java

Scanner exercise solution. Why did I need to create a new Scanner object here to get it to work?

1 week ago 3 replies

Associate Certification (OCAJP 7/8)

failed OCA Java 1Z0-808

1 week ago 17 replies 1

Cattle Drive

Alternative payment method and PayPal error

1 week ago 6 replies 1

Java in General

how to handle generic types in javadoc?

1 week ago 8 replies 1

Java in General

Webservice wsdl and program

1 week ago 0 replies

Java in General

MicroService Example and Basic Questions

1 week ago 0 replies

Wiki

OCMJEA Wall Of Fame

1 week ago

Beginning Java

I tried to write an easy algorithm but it doesn't work

1 week ago 9 replies

JDBC and Relational Databases

GetStarted

1 week ago 3 replies

NetBeans

Problem in installation of Netbeans 8.2

1 week ago 2 replies

Object Relational Mapping

Best Practices - Strategy - Versions

1 week ago 0 replies

Lambdas and Streams

Traversing a stream of Characters

1 week ago 51 replies [ 1, 2 ] 2

Android

Unable to pause activity : java.lang.NullPointerException: Service not registered: null object refer

1 week ago 4 replies

Java in General

LinkedList print value with index and compare with ArrayList

1 week ago 1 reply

HTML Pages with CSS and JavaScript

With and without /

1 week ago 7 replies

Other IDEs, Version Control

Understanding relationship Eclipse, Bitbucket and gitHub

1 week ago 2 replies

Beginning Java

How to use Runtime.getRuntime().halt(0);?

1 week ago 7 replies

Java in General

Getting the text from a JTextField in another window and adding it as a text on the JPanel

1 week ago 1 reply

Events

How to accelerate software engineering without compromising on quality

1 week ago 0 replies

Threads and Synchronization

appropriate Exception when method is called from wrong Thread

1 week ago 1 reply

Sockets and Internet Protocols

little endian and big endian

1 week ago 6 replies

Threads and Synchronization

Print even odd numbers using two threads

1 week ago 1 reply

JDBC and Relational Databases

Popsql error message: Oracle database Library

1 week ago 2 replies

Android

An error occurred while executing doInBackground()

1 week ago 6 replies

JavaFX

Indeterminate "Select All" CheckBox

1 week ago 3 replies

Beginning Java

Three doubts not exactly explained in OCA exam book

1 week ago 4 replies

General Computing

Run-time analysis of pseudo Code

1 week ago 11 replies
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Java
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- EJB and other Jakarta/Java EE Technologies 63230
- Web Services 44176
- Swing / AWT / SWT 114877
- Sockets and Internet Protocols 18285
- Threads and Synchronization 27133
- Performance 15406
- I/O and Streams 28792
- Other JSE/JEE APIs 18906
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- JNLP and Web Start 2706
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- Bluetooth - JSR82 28
- Other JSRs 64
Mobile
- Java Micro Edition 19093
- Android 18893
- iOS 1377
Certification
- Programmer Certification (OCPJP) 294778
- Developer Certification (OCMJD) 76754
- Java Foundations Exam 5363
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- Web Component Certification (OCEJWCD) 85067
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- JPA Certification (OCEJPAD) 1252
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Databases
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Caching
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Books
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Paradigms
- Functional programming 662
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IDEs
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Open Source
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This Site
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Careers
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Other
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Go to forum

Best this year

Why are beginners not familiar with Streams?

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

Advent of Code 2018

Write the code of program Room?

Create my own object that works like an array

My version of Conway's Game of Life

New Java SE 11 based certification exams released today !

* Welcome Kathy Sierra, Bert Bates, & Elisabeth Robson

Help with a Method moveToLocation (Vehicle Class)

How to check part of a string?

* Welcome Peggy Fisher

This code is not acting the same way in NetBeans

Stream min and max methods

Print the position of the array in the output rather than the values

Reviews or feedback of basic java programs

Syntax error, insert ";" to complete FieldDeclaration

Beware: three parameter Stream.iterate method might fall one short

OOP, what is an Object?

Using Comparator to sort HashMap with ArrayList values

Is the functional programming syntax of Java less self explanatory then the old syntax?

Best this month

OCA/OCP (Sybex) Ch.08 Question 35 Answer is irritating

Study tips for 1Z0-815

Sybex OCP Java 8 Study Guide: p557 query (possible erratum?)

OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide Chapter 3 Question 25

better way of returning element

Importance of Inheritance and when to use Getters and Setters

Java Operators and Precedence, Evaluation Order

LocalDate objects how to check if a start and end Date overlaps with another?

no exeception is raised

Annotation not converting results to JSON

Modulus (%) not working as supposed to

Word Finder

Substrings

Find powerset of numbers up to a given number

Override equals method

Do returned values from methods need to be saved in static variables?

equals method

Design Help Requested

Syntax java

Switch statement: Illegal start of expression (huh?!)

Most recent

Passed OCMJEA 1Z0-807, 1Z0-865, 1Z0-866

Production and Distribution Network - Student Project

Android 8 not display my ListView

Scanner exercise solution. Why did I need to create a new Scanner object here to get it to work?

failed OCA Java 1Z0-808

Alternative payment method and PayPal error

how to handle generic types in javadoc?

Webservice wsdl and program

MicroService Example and Basic Questions

OCMJEA Wall Of Fame

I tried to write an easy algorithm but it doesn't work

GetStarted

Problem in installation of Netbeans 8.2

Best Practices - Strategy - Versions

Traversing a stream of Characters

Unable to pause activity : java.lang.NullPointerException: Service not registered: null object refer

LinkedList print value with index and compare with ArrayList

With and without /

Understanding relationship Eclipse, Bitbucket and gitHub

How to use Runtime.getRuntime().halt(0);?

Getting the text from a JTextField in another window and adding it as a text on the JPanel

How to accelerate software engineering without compromising on quality

appropriate Exception when method is called from wrong Thread

little endian and big endian

Print even odd numbers using two threads

Popsql error message: Oracle database Library

An error occurred while executing doInBackground()

Indeterminate "Select All" CheckBox

Three doubts not exactly explained in OCA exam book

Run-time analysis of pseudo Code

Top Forums

Java

Mobile

Certification

Databases

Caching

Books