Java was written to be a portable and cross-platform language that doesn't care about the operating system, hardware, or devices that it's running on. There is automatic garbage collection in java which runs on the Java Virtual Machine to get rid of objects which are not being used by a Java application anymore. Java is an interpreted language that is why it is slower than compiled languages, e.g., C, C++, etc. It is the underlying technology that powers state-of-the-art programs including utilities, games, and business applications. Copyright Â© 2020 Multiply Media, LLC. It shares a common memory area. platform (be it a web browser, operating system, or cell phone) to ggauravr wrote: Could anyone plz explain to me why actually java is considered portable even though the virtual machine for each platform is different ?? There are exception handling and the type checking mechanism in Java. This bytecode is a platform-independent code because it can be run on multiple platforms, i.e., Write Once and Run Anywhere(WORA). Implementing the Java virtual machine on new architectures is a relatively straightforward task as long as the target platform meets … Java architecture provides a portable, robust, high performing environment for development. There is a lack of pointers that avoids security problems. You need different Java source code for each CPU. One of those programming platforms, Java, has been in the news lately because of its security problems involving the Apple Macintosh operating system, Mac OS X. a. Definition of Java. Java is portable,i.e. this, to run a Java program all you need is an interpreter on your All Rights Reserved. Java is very easy to learn, and its syntax is simple, clean and easy to understand. You need about 105 MB of space for the Java, and about 11 MB of space for the runtime environment. The portable Java Runtime Environment provides the Java environment for applications of the apps suite. There are two types of platforms software-based and hardware-based. JavaTpoint offers too many high quality services. Because JVM prevents the code from generating its side effects. Portable storage is defined as any external storage that is not adopted by the system and therefore not formatted and encrypted or tied to a specific device. These are the popularly-used and highly-rated ones. Java provides a software-based platform. Java's promise of "Write once and run anywhere" was one of the major factors for the success of Java over the past few decades. # Portable. The primary objective of Java programming language creation was to make it portable, simple and secure programming language. Portable Finder: Java Ide DownloadTop Recommended Portable Apps/Software Although the Java Runtime Environment (JRE) package requires installation and there is no official portable version, it is still possible to run applets and applications without installing Java into Windows. It means classes are loaded on demand. Probably more interesting than this is the fact that portable apps offer a Java Portable Launcher which can be used to launch third party Java programs as well. Because the Java VM is available on many different operating systems, the same .class files are capable of running on Microsoft Windows, the Solaris™ Operating System (Solaris OS), Linux, or Mac OS. The features of Java are also known as java buzzwords. which are compiled into platform specific machines while Java is a write once, run anywhere language. Java is a general-purpose object-oriented programming language designed with the intention of producing a code where the same code could be used anywhere.James Gosling of Sun Microsystems guided the development of Java in late 1990’s.This programming language is class-based, object-oriented and human readable. Please mail your requirement at firstname.lastname@example.org. Java is portable because it facilitates you to carry the Java bytecode to any platform. And, like others said, “interpreted” or “compiled” is not a property of the language. Sun, the makers of Java, only need you to compile for the runtime (e.g. Mail us on email@example.com, to get more information about given services. 179 People Used More Information ›› There is a lack of pointers that avoids security problems. 2) Secondaly,Bytecode is a highly optimized set of instructions 3)Bytecode is executed by Java run-time system, which is called the Java Virtual Machine (JVM). In this video tutorial, we talked about what is Portable and Robust. All these points make Java robust. Developed by JavaTpoint. But if we've managed to set up a non-standard configuration (let alone made a mess) on our system, Maven's helpfulness doesn't suffice anymore. Java is a dynamic language. There's no way for any language to be 100% platform-independent without something between it and the underlying OS/hardware that is specific to that OS/hardware. Java is portable because it does not compile machine level code, like most compliers, but instead makes bit level code. The Java programs executed by the JVM that makes the code portable and secure. 3. Object-oriented means we organize our software as a combination of different types of objects that incorporates both data and behavior. © Copyright 2011-2018 www.javatpoint.com. You can take code that has been generated by the Java compiler and run it on different CPUs. Some security can also be provided by an application developer explicitly through SSL, JAAS, Cryptography, etc. A platform is the hardware or software environment in which a program runs. Java has been widely popular the world over, primarily because of a vast array of features it provides. Duration: 1 week to 2 week. How tall are the members of lady antebellum? Portable Java. Java supports dynamic compilation and automatic memory management (garbage collection). Robust simply means strong. like most compliers, but instead makes bit level code. Java is platform independent because it is different from other languages like C, C++, etc. Portable:- Because of its portable feature if a java code is written on one computer system then it can run on another PC. It has two components: Java code can be run on multiple platforms, for example, Windows, Linux, Sun Solaris, Mac/OS, etc. In the case of Java, it is the magic of Bytecode that makes it platform independent. It appears to first load the location of Java (that is, Portable Java) from the registry (JAVAHOME environment variable seems to never be checked). However, it occupies 4 bytes of memory for both 32 and 64-bit architectures in Java. Apart from this, there are also some excellent features which play an important role in the popularity of this language. According to Sun, Java language is a simple programming language because: Java is an object-oriented programming language. This adds to an important feature in the JAVA language termed as portability. Java has removed many complicated and rarely-used features, for example, explicit pointers, operator overloading, etc. the JRE). For example, if we install Java 11 on an Ubuntu 18.04 system and don't set the JAVA_HOME environment variable, Maven will still happily find our JDK and use it for the different goals, including compiling. Java is faster than traditional interpretation since bytecode is "close" to native codestill somewhat slower than a compiled language (e.g., C++). You know who uses C#? It supports dynamic loading of classes.