I need to read classes contained in a Java package. Those classes are in classpath. I need to do this task from a Java program directly. Do you know a simple way to do? ...

...ut explains very well all different uses of the this keyword: Definition: Java’s this keyword is used to refer the current instance of the method on which it is used. Following are the ways to use this: To specifically denote that the instance variable is used instead of static or local variab...

A very simple & quick question on Java libraries: is there a ready-made class that implements a Queue with a fixed maximum size - i.e. it always allows addition of elements, but it will silently remove head elements to accomodate space for newly added elements. ...

... Simple example for how to set JAVA_HOME with setx.exe in command line: setx JAVA_HOME "C:\Program Files (x86)\Java\jdk1.7.0_04" This will set environment variable "JAVA_HOME" for current user. If you want to set a variable for all users, you have to us...

...t usage. Could you please tell me what it should be used for in C# and in Java? 8 Answers ...

In C/C++ we have memset() function which can fulfill my wish but in Java how can i initialize all the elements to a specific value? Whenever we write int[] array=new int[10]; , this simply initialize an array of size 10 having all elements equal to zero. I just want to change this initializa...

I'm just getting started with using json with java. I'm not sure how to access string values within a JSONArray. For instance, my json looks like this: ...

...says that static initialization occurs from top to bottom: docs.oracle.com/javase/specs/jls/se7/html/jls-8.html#d5e12267 – Selena Oct 15 '14 at 18:22 ...

I'm trying to make a simple String to SHA1 converter in Java and this is what I've got... 12 Answers ...

In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present. 12 A...