The following print statement would print "hello world". Could anyone explain this? System.out.println(random
I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my si
I came across some Java code that had the following structure: public MyParameterizedFunction(String param1,
What is the main difference between an inner class and a static nested class in Java? Does design / implementa
I know that Java enums are compiled to classes with private constructors and a bunch of public static members.
I've got a nested loop construct like this: for (Type type : types) { for (Type t : types2) {
Use of java.net.URLConnection is asked about pretty often here, and the Oracle tutorial is too concise about i
I understood, I think, that a "Bean" is a Java class with properties and getters/setters. As much as I underst
In Java, arrays don't override toString(), so if you try to print one directly, you get the className + &
Say I have an enum which is just public enum Blah { A, B, C, D } and I would like to find the enum value
From what time I've spent with threads in Java, I've found these two ways to write threads: With imp
Can @Component, @Repository and @Service annotations be used interchangeably in Spring or do they provide any
What is reflection, and why is it useful? I'm particularly interested in Java, but I assume the principle
Is it possible to call a constructor from another (within the same class, not from a subclass)? If yes how? An
I have a String[] with values like so: public static final String[] VALUES = new String[] {"AB","BC","CD","AE
Considering this code, can I be absolutely sure that the finally block always executes, no matter what somethi
I got an error while running my Android project for RssReader. Code: URL url = new URL(urlToRssFeed); SAXPa
I want to package my project in a single executable JAR for distribution. How can I make a Maven project pack