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    • cannot resolve symbol

      cannot resolve symbol

      “cannot resolve symbol” means that the Java compiler cannot locate a symbol referenced in your Java source code. The causes for this common error include: A missing class file A faulty CLASSPATH A symbol name is mispelled or miscapitalized A data type is incorrect, misspelled, or miscapitalized A method is called with the wrong number

    • Java Servlet

      Java Servlet

      A Java Servlet is the Java technology used to extend and improve Web server functionality. Servlets are able to provide a platform independent way to build web-based applications founded upon components without the performance limitations found with comparable CGI applications. Since Java Servlets are platform and server independent, they can be deployed across the full

    • JRE (Java Runtime Environment)

      JRE (Java Runtime Environment)

      The JRE is the Java Runtime Environment. The JRE consists of the Java Virtual Machine, the Java libraries, and all other components necessary to run Java applications and applets. Sun distributes the JRE seperately, or as part of J2EE, J2SE, and J2ME.          

    • Java


      Java was originally developed as an implementation of a programming language that would compile and complete its directive functions regardless of platform and language version. It was developed by James Gosling, a software developer employed by Sun Microsystems in June of 1991, whom released the first version of Java in 1995. The language is designed

    • Java Package

      Java Package

      A Java package is a set of classes which are grouped together. This grouping helps to organize Java classes and codevent multiple Java classes with the same name. Using Java Packages To use a package in your Java source code, you must either import the package or use the fully qualified class name each time

    • How to Check the Java Version

      How to Check the Java Version

      It is quite important to know which version of Java is installed on your computer, especially if you are developing applications and software on the Java platform. Using an outdated version of Java may hinder your Java development or even render web pages inappropriately in your browser. Below are few straightforward ways to check which

    • How to Declare a Constant in Java

      How to Declare a Constant in Java

      Java does not directly support constants. However, a static final variable is effectively a constant. The static modifier causes the variable to be available without loading an instance of the class where it is defined. The final modifier causes the variable to be unchangeable. Ex: public static final int FOUNDING_YEAR = 2001; Naming Standards for

    • Java Method

      Java Method

      Java Method is very much similar to a normal method or a function written within a class definition. Java method is basically a set of statements group together to perform a specific task. This method is included in a class. An object instantiated from a class can call methods of that class. Every Java method

    • Jar File

      Jar File

      JAR is an abbreviation for Java Archive. It is basically a file in archive format used to group and integrate Java classes, resources, metadata together which can then be easily distributed across Java platform. However the underlying file format is ZIP with a .jar extension. Every JAR file contains a manifest file which is normally

    • Java vs. JavaScript

      Java vs. JavaScript

      Java and JavaScript are two different programming languages meant for different purposes and functionality. Java is an application programming language designed to write stand-alone Java programs and web applications running on the Internet. JavaScript is a client-side scripting language specifically designed to work with various web technologies, but on the client’s end. To understand the

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