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Java in General

Stuff that is past the beginners stage

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HashMap implementation

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Java in General

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Java in General

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Java in General

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Picking a random Key and Value from a Map?

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Java in General

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Java in General

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Java in General

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Java in General

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24 replies

Question on Generics

20 replies

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Java in General

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Java in General Forum at JavaRanch

How to get a RegEx to extract only uppercase from string

2 months ago 51 replies [ 1, 2 ]

Static Final Variable Confusion & its limitation in context of Constructor

2 months ago 1 reply

I'm this close to tearing out every strand of hair I have.

2 months ago 9 replies 1

Head First Design Patterns - Baking OO with goodness

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Java Map Generating

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java.lang.Runtime close cmd window

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Annotations

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Beginning Java

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Comparing strings

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Test private method with primitive parameters in JUnit

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Sockets and Internet Protocols

How to connect plain JAVA SE desktop application to WebSocket?

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Java Collection & Generics

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Javamail Issue

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Beginning Java

finding of n and s in rectangle

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How to use Java Generics

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Javadoc problem with images and generated jar file

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Concrete class not implementing Abstract method but providing the body of the method

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Other JSE/JEE APIs

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2 months ago 23 replies 1

how to execute a jar file? - when i click a button (web application) on browser?

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Java in General

Best this year

HashMap implementation

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

Is while (1) loop possible in Java ?

How can I get this algorithm to work correctly ?

Picking a random Key and Value from a Map?

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)

Auto complete implementation using primitives only

Utility: Adding a word index to jdk-8-doc api

Best this month

Picking a random Key and Value from a Map?

Utility: Adding a word index to jdk-8-doc api

Does reflection always give the correct information re anonymous classes?

RegEx to match the first five-digit number

Declaring Method in main class

EBCDIC sort order in Java

Maven Project is not downloading dependent Jar from pom.xml

Hackerrank challenge

Difference between new operator and newInstance() method

Why wait and notify from synchronized context?

Is there a way to produce sound with Java?

Is there anyway I can get the result of java program out put to bash script variable ?

Question on Generics

Java & Least Significant Bits

String pool and the new operator question

Not decrypting properly

filling a 2D array with alphanumeric values -- type errors

Add Method with two parameter

polymorphic computer player: an abstract class with an abstract method

Why are business services classes designed as singleton

Java in General Forum at JavaRanch

How to get a RegEx to extract only uppercase from string

Static Final Variable Confusion & its limitation in context of Constructor

I'm this close to tearing out every strand of hair I have.

Head First Design Patterns - Baking OO with goodness

What is causing the Exception in thread “pool-1-thread-2” (NullPointerException)

Hadoop Text Object to String Object Problems

How to keep timers for several objetcs at the same time

Java Map Generating

Why do Java programs end up being longer to write than the equivalent Python programs?

for-each loop vs Iteraor

Smooks Config. xml takes too long ..

java.lang.Runtime close cmd window

JFreeChart: multiple sensor data presented in a graph

Problem with XMLSerializer

Annotations

Problem with Threads

Exceptions

Performance of HashMap in Java8

Comparing strings

Test private method with primitive parameters in JUnit

How to connect plain JAVA SE desktop application to WebSocket?

Java Collection & Generics

Javamail Issue

finding of n and s in rectangle

How to use Java Generics

Javadoc problem with images and generated jar file

Concrete class not implementing Abstract method but providing the body of the method

Javamail : Unknown encoding: 8bit issue

How to create a task in a JavaFX application (with a runnable) that handles data from a web server?

Question about java.time.temporal

How to create a new (different) object everytime by a method?

how to execute a jar file? - when i click a button (web application) on browser?

How to run shellscript code using java language

Java