What does it mean to say that Java is portable?

Answer 1

Java is portable because it does not compile machine level code, like most compliers, but instead makes bit level code. Because of this, to run a Java program all you need is an interpreter on your platform (be it a web browser, operating system, or cell phone) to run the code.

Answer 2

Java is a programming language developed by Sun Microsystems. It can be used across different platforms such as PCs, mobile phones, games consoles etc.

It is portable, at the object (or byte code) level, because it runs on a virtual machine that performs the same operations no matter what computer or operating system it is running on. Java Virtual Machines, or Java Run-Time Environments, do have different versions, and portability depends on having a compatible version installed on the target machine.

Answer 3

AnswerAnswerIt means that Java can run on nearly every type of hardware and operating system.

Java is known as a "portable language" because Java code can execute on all major platforms. What's more, once you've compiled your Java source to "byte-code" .class, those files can be used on any Java-supported platform without modification, unlike many other languages, which require compiling "machine code" for each platform, e.g. a separate ".exe" for 32-bit vs 64-bit environments.

Another meaning of "portable", used mainly in Windows environments, means that the Java run-time environment can be run from any arbitrary location in your filesystem and does not need to be "installed", that is, have important information stored in the Windows registry. This is also true for most Java applications, and enables them to be run from different drive letters, via for example an external storage device like a USB flash drive from any computer without having to install the application first.

Answer 4

Java is portable in the sense that it is not specific to any one operating system. Any platform can execute Java software assuming that platform has a JVM.

In a more literal sense, Java also offers some convenient ways to port software - packages and JAR files for example.

Answer 5

java is a portable language i.e. it can be moved from one platform to other and can be executed there.java program is compiled which creates a .class file.this file now needs jvm to run it.jvm is nothing but any operating system with interpreter to read this byte code.a java .class file can be run on any o.s.......so, we can say java is machine independent.

Answer 6

Because it is. Once you write a Java program, it can be run anywhere where a Java Virtual Machine, that is, the Java runtime environment, is installed - and this is available for free, for many different platforms.

Answer 7

In theory any device that runs Java, can run any java program, regardless of what the device is. There's no need to recompile, reinterpret, for a different device. So it's a portable language, the programs can be ported effortlessly.

Answer 8

Java program is executed by the JVM.

The JVM prevent java code from generating side effects outside of the system.

Safety is also enhanced by certain restrictions that exist in the Java language.

C. Interpreter are slower than Compiler

Java Code is Executed by JVM (interpreter).Other programming language uses compiler which can create executable code much faster then why we are using Interpreter.

When a program is interpreted, it generally runs slower than the same program would run if compiled to executable code.

In Java Compiler will generate ByteCode which is highly optimized.

Thus running highly optimized code using interpreter makes execution of java program faster.