In this section you can learn and practice Aptitude (Questions with Answers) to improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.
XtraStudy provides you lots of fully solved Aptitude questions and answers with explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. You can view the solutions for the problems with feel and good user interface.
You can easily solve all kind of questions based on Aptitude by practicing exercise given in this APTITUDE section.
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Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.
Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX/Linux like HP-Unix, Sun Solaris, Redhat Linux, Ubuntu, CentOS, etc.
Some features of java include Object Oriented, Platform Independent, Robust, Interpreted, Multi-threaded etc.
JVM is an acronym for Java Virtual Machine, it is an abstract machine which provides the runtime environment in which java bytecode can be executed. It is a specification.
JVMs are available for many hardware and software platforms (so JVM is platform dependent).
JRE stands for Java Runtime Environment. It is the implementation of JVM.
JDK is an acronym for Java Development Kit. It physically exists. It contains JRE + development tools.
A platform is basically the hardware or software environment in which a program runs. There are two types of platforms software-based and hardware-based. Java provides software-based platform.