How many types of java comments are there? Everybody knows there are two types of java comments available. Now the misunderstood part starts. What are those two types of java comments? The (§3.7) Java Language Specification Third Edition says, Traditional Comment End of line Comment What happened to the documentation comment or javadoc comment? No [...]
This check list for Internationalization (I18n) will cater to the need of programmers irrespective of the language java /dot net/ j2ee / any other. Translatable items GUI – Labels and Menu items User messages including third party component generated Log / system generated messages Help – Online help / manual and other deliverable documentation Installation [...]
In java, a frequent occurence of a common phenomenon related to memory management is creation and destruction of temporary objects. What are java temporary objects? For example in java, when two strings are concatenated, a StringBuffer object is created. As two Java String objects cannot be added directly (immutable property), a helper object StringBuffer is [...]
First lets understand what does “java import” does to your java program! Consider the java import statements: 1) import package.ClassA; 2) import package.*; Java statement (1) gives you a license to use ClassA inside the whole program without the package reference. That is you can use like ClassA obj = new ClassA(); or ClassA.getStatic(); Java [...]
java.util.Vector came along with the first version of java development kit (JDK). java.util.ArrayList was introduced in java version1.2, as part of java collections framework. As per java API, in Java 2 platform v1.2,vector has been retrofitted to implement List and vector also became a part of java collection framework. All the methods of Vector is [...]
Java variables can be categorized into the following seven types: Class Variable Instance Variable Array Component Variable Method Parameter Variable Constructor Parameter Variable Exception Handler Parameter Variable Local Variable 1) Class Variable A java class variable is a field declared using the keyword static within a java class, or with or without the keyword static [...]
Following answer is applicable irrespective of the language and platform used. Before we enter into session tracking, following things should be understood. What is a session? A session is a conversation between the server and a client. A conversation consists series of continuous request and response. Why should a session be maintained? When there is [...]
Marker interface is used as a tag to inform a message to the java compiler so that it can add special behaviour to the class implementing it. Java marker interface has no members in it. Lets take the java.io.Serializable marker interface. It doesnot has any members defined it it. When a java class is to be [...]
A java variable can be declared using the keyword final. Then the final variable can be assigned only once. A variable that is declared as final and not initialized is called a blank final variable. A blank final variable forces the constructors to initialise it. Java classes declared as final cannot be extended. Restricting inheritance! [...]
