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what is the difrence between Java & java script

what is the difrence between Java & java script and is there relationship between them

16th Sep 2017, 10:17 PM
Mohammed Abd El-tawab Farahat
Mohammed Abd El-tawab Farahat - avatar
2 Respostas
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Java is an Object Oriented Programming language while JS is an Object Oriented Scripting language. Now you must find the difference between programming language and scripting language In fact a scripting language is a programming language, which is interpreted, rather than compiled! The interpreter executes the program directly, translating each statement into a sequence of one or more subroutines already compiled into machine code. (Web Browser, Adobe Photoshop, ... have an Interpreter Engine for executing JS) Java, C#, ... compiled into bytecode, the virtual machine-friendly interpreted language. (JVM is Java Virtual Machine, is an abstract computing machine that enables a computer to run a Java program. ) In other words, a compiler or an interpreter is a program that converts program written in high-level language into machine code understood by the computer. Scans the entire program and translate it as a whole into machine code. It takes less amount of time to analyze the source code but the overall execution time is slower. Interpreter> - Translates program one statement at a time. - It takes less amount of time to analyze the source code but the overall execution time is slower. - No intermediate object code is generated, hence are memory efficient. - Continues translating the program until the first error is met, in which case it stops. Hence debugging is easy. - Programming language like Python, Ruby use interpreters. Compiler > - Scans the entire program and translates it as a whole into machine code. - It takes large amount of time to analyze the source code but the overall execution time is comparatively faster. - Generates intermediate object code which further requires linking, hence requires more memory. - It generates the error message only after scanning the whole program. Hence debugging is comparatively hard. - Programming language like C, C++ use compilers. No any relationship between java and js, but you can write an interpreter engine using java for running JS
17th Sep 2017, 1:01 AM
Hadi Akbarzadeh
Hadi Akbarzadeh - avatar