How is java platform independent

Is platform independence necessary in Java?

Java is platform-independent because it does not depend on any type of platform. Hence, Java is platform-independent language. In Java, programs are compiled into byte code and that byte code is platform-independent. … Any machine to execute the byte code needs the Java Virtual Machine.

Why Java is platform independent and JVM is platform dependent?

JVM is platform dependent because it takes java byte code and generates byte code for the current operating system. So Java software is platform dependent but Java language is platform independent because different operating system have different JVMs.

Can Java run on any platform?

Java programming language is platform independent. … With Java, you can compile source code on Windows and the compiled code (bytecode to be precise) can be executed (interpreted) on any platform running a JVM. So yes you need a JVM but the JVM can run any compiled code, the compiled code is platform independent.

Is JVM independent of OS?

For every operating system separate JVM is available which is capable to read the . class file or byte code. An important point to be noted is that while JAVA is platform-independent language, the JVM is platform-dependent. Different JVM is designed for different OS and byte code is able to run on different OS.

Who is the father of Java?

James Gosling

Why is JVM needed?

A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are also compiled to Java bytecode. The JVM is detailed by a specification that formally describes what is required in a JVM implementation.

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What is difference between JDK JRE and JVM?

JDK is a software development kit whereas JRE is a software bundle that allows Java program to run, whereas JVM is an environment for executing bytecode. The full form of JDK is Java Development Kit, while the full form of JRE is Java Runtime Environment, while the full form of JVM is Java Virtual Machine.

Is Java is a structured programming language?

Structured programming is a software development method that uses modularization and structured design. … As its name suggests, structured programming is done in a structured programming language and PHP, C#, C++, Java, Visual Basic, and Python are such languages.

Why Java is called portable language?

Java is considered as Portable because – Output of a Java compiler is Non Executable Code i.e Bytecode. Bytecode is executed by Java run-time system, which is called the Java Virtual Machine (JVM).

Why is C++ not platform independent?

When a program is written and compiled in C/C++ language, the code is directly converted into machine readable language . i.e. executable code. … i.e. when the program is compiled in windows OS .exe file can run only in windows OS and not on Unix OS. Therefore C/C++ programs are said to be platform dependent.

Is Java 100 object oriented language?

JAVA supports primitive data type as it, byte, long, etc so Java is not fully object-oriented. But on the other hand JAVA, we use data types like int, float, double, etc which are not object-oriented, and of course which is opposite of OOP. So, why JAVA is not 100% objected oriented.

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Is JVM an operating system?

JVM places itself between the bytecode and the underlying platform. The platform comprises the operating system (OS) and the hardware. … This means that, although the product of Java compiler may be platform independent, JVM is platform specific.

Why JVM is different for different OS?

JVM is different for not every system because JVM is Machine+ O.S. which is different of every system. That s why we download JVM for windows or Mac ,linux etc. Every JVM is designed for different OS and byte code is able to run on different OS. Jvm is platform dependent why it coded in “c” language.

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