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What does the byte code run on?

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∙ 9y ago

Updated: 10/16/2024

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Q: What does the byte code run on?

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What is contain inside the jar file?

.jar files contain byte-code compiled to run on the Java Virtual Machine.

What is compiled code?

Compiled code is plain-text source code that is translated from an English-like, high-level language into either machine code or byte code by a program known as a compiler. Machine code is the native language of the machine, consisting of binary patterns that represent a sequence of machine instructions and their operands. Byte code is the native language of a virtual machine; a machine that only exists within a computer's memory. The virtual machine is simply a program that interprets the byte code in order to produce the actual machine code. Unlike machine code which must be compiled separately for each platform, byte code will run on any platform that has a corresponding virtual machine implementation.

Is java fully platform independent?

Java is a platform independent language.After compiling the ".java" file ,that will be converting into the ".class" file,which is a byte code having the capability run on any OS.Basing on the concept byte code java achieving the platform independent,it leads to "Write once run anywhere".

Is Java is platform dependent or independent?

Java is not machine dependent. High-level Java source code is compiled against the JVM which produces Java byte code, the lower-level native language of the JVM. At runtime, the JVM interprets the byte code to produce the required machine-dependent code. Every platform that supports Java has its own JVM, thus the same byte code can execute upon any supported platform. The translation from byte code to machine-dependent code is handled solely by the platform JVM.

What is the purpose of a byte in Java?

Java coding uses byte as one of the programming directives to clarify commands. Byte can also be used in the Java code to save memory space when the need arises.

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Related Questions

What is byte code and native code?

native code is machine code each machine has its won set of istruction one machine's native code won't run on another While bytecode is what java produces and it can run on any machine. when we run bytecode it first get to compile to machine code and then get to run.

Why the byte code is verified?

when we compile a file in java, it creates a byte code which later on gets interpreted to machine understandable code. byte code is not machine language. where system understands only machine language. hence the interpretation of byte code is required.

What is the Byte code definition?

Java compiler produces an intermediate code after compilation, understandable by JVM is called Byte Code.

What is contain inside the jar file?

.jar files contain byte-code compiled to run on the Java Virtual Machine.

What is BYTE Code in java?

Java byte code is the code that is output by the Java compiler. Byte code is not machine code, it must be interpreted to create the machine code. This is handled by the Java virtual machine. Pretty much every platform produced today has a Java virtual machine implementation, so the same byte code can be executed upon any machine. Byte code can be regarded as being the native language of the virtual machine, as opposed to machine code which is the native language of the physical machine.

What is compiled code?

Compiled code is plain-text source code that is translated from an English-like, high-level language into either machine code or byte code by a program known as a compiler. Machine code is the native language of the machine, consisting of binary patterns that represent a sequence of machine instructions and their operands. Byte code is the native language of a virtual machine; a machine that only exists within a computer's memory. The virtual machine is simply a program that interprets the byte code in order to produce the actual machine code. Unlike machine code which must be compiled separately for each platform, byte code will run on any platform that has a corresponding virtual machine implementation.

What is expanding opcode?

A code that leaves a spare bit to indicate that if that bit is set, consider this byte and the next byte to be defining the entire code.

How does VM code compiler works?

The Java virtual machine is not a compiler, it is an interpreter which primarily performs runtime-translation of Java byte code (the native language of the Java virtual machine) to machine-code (the native language of the physical machine). The Java compiler, on the other hand, is a separate program used to perform compile-time conversion of high-level Java source code to the lower level byte code. Java byte code is highly portable; once compiled, any architecture or platform that implements a JVM can execute the byte code without modification.

How java is fast?

Java is not fast. Compared to equivalent code compiled to native machine code it is extremely slow. However, it is somewhat faster than many other interpreted languages because the source code compiles to Java byte code which is suitable for interpretation by any Java virtual machine. Interpreting byte code is much quicker than interpreting source code and, unlike machine code, byte code is portable.

Can the Java Virtual Machine execute only Java byte code?

Yes. Note, however, that does not limit the language in which a program is written to Java. There are a number of languages designed to run in the JVM and the number is growing. See https://en.wikipedia.org/wiki/List_of_JVM_languagesfor reference.

Which software runs specific program.?

It depends on which specific program you have in mind. Native machine code programs do not require any software to run; the program was converted into the machine's native language during compilation and does not require further translation. However, machine code is non-portable. To execute the same program on another platform the source code must be recompiled for that platform. Conditional compilation directives ensure that the correct machine-specific source code is compiled. Byte code programs, however, do require software to execute. Byte code is not native machine code so must be converted to native machine code while it is executing. This is achieved using a runtime program known as an interpreter. Java is a typical example. Java source code is compiled to Java byte code suitable for interpretation by the Java virtual machine (JVM). Thus a JVM is required to execute Java programs. Unlike native machine code, byte code is portable; the same byte code will execute upon any machine that has a suitable interpreter available.

Which software runs a specific program?

It depends on which specific program you have in mind. Native machine code programs do not require any software to run; the program was converted into the machine's native language during compilation and does not require further translation. However, machine code is non-portable. To execute the same program on another platform the source code must be recompiled for that platform. Conditional compilation directives ensure that the correct machine-specific source code is compiled. Byte code programs, however, do require software to execute. Byte code is not native machine code so must be converted to native machine code while it is executing. This is achieved using a runtime program known as an interpreter. Java is a typical example. Java source code is compiled to Java byte code suitable for interpretation by the Java virtual machine (JVM). Thus a JVM is required to execute Java programs. Unlike native machine code, byte code is portable; the same byte code will execute upon any machine that has a suitable interpreter available.

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