Is Java bytecode OS dependent?

The meaning of platform-independent is that the java compiled code(byte code) can run on all operating systems. A program is written in a language that is a human-readable language. … Therefore, a compiler is a program that translates the source code for another program from a programming language into executable code.

Is Java bytecode operating system dependent?

In Java, programs are compiled into byte code and that byte code is platform-independent. The byte code is executed by the Java Virtual Machine and the Java Virtual Machine is platform dependent. Java is platform-independent. Any machine to execute the byte code needs the Java Virtual Machine.

Is bytecode machine dependent?

Java byte code is highly machine dependent.

Is Java operating system independent?

Java is OS independent language because SAME source code will work in any OS.

Is bytecode only for Java?

Indeed, the Java language can be compiled in any way. Although the JVM specification does cover bytecode. “The Java Virtual Machine knows nothing of the Java programming language, only of a particular binary format, the class file format.

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Why Java is platform independent and JVM 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.

Why Java is platform independent and portable?

Java is a portable:

The Java source code is compiled in bytecode when the javac compiler is used. The bytecode is saved on the disk with the file extension . … This bytecode is a platform independent code because it can be executed on several platforms, that is, Write Once and Run Anywhere (WORA) .

What is JVM in Java?

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.

What is the size of int variable in Java?

Primitive Data Types

Data Type Size
int 4 bytes
long 8 bytes
float 4 bytes
double 8 bytes

What is the output of compilation of Java program?

The most common form of output from a Java compiler is Java class files containing platform-neutral Java bytecode, but there are also compilers that output optimized native machine code for a particular hardware/operating system combination, most notably the now discontinued GNU Compiler for Java.

How is inheritance defined in Java?

Inheritance in Java is a concept that acquires the properties from one class to other classes; for example, the relationship between father and son. In Java, a class can inherit attributes and methods from another class. The class that inherits the properties is known as the sub-class or the child class.

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Is Java structured language?

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. The structured programming concept was formalized in 1966 by Corrado Böhm and Giuseppe Jacopini.

What is difference between C and Java?

Java is Object-Oriented language. … Java is more data-oriented. C is a middle-level language because binding of the gaps takes place between machine level language and high-level languages. Java is a high-level language because translation of code takes place into machine language using compiler or interpreter.

Why is Java compiled to bytecode?

Bytecode in Java is the reason java is platform-independent, as soon as a Java program is compiled bytecode is generated. To be more precise a Java bytecode is the machine code in the form of a . class file. A bytecode in Java is the instruction set for Java Virtual Machine and acts similar to an assembler.

How does a byte code look like?

A method’s bytecode stream is a sequence of instructions for the Java virtual machine. Each instruction consists of a one-byte opcode followed by zero or more operands. The opcode indicates the action to take.

Does Java compile programs into bytecode?

Answer: The Java compiler translates Java programs into a language called Java bytecode. Although bytecode is similar to machine language, it is not the machine language of any actual computer. A Java interpreter is used to run the compiled Java bytecode program.

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