If there are any unsaved changes to the source code file it has the test editor save the changes. When they have finished entering the source code, they usually direct the IDE to “compile & run” the program. As they make changes they might either do a “save as” or “save”. Upon starting the IDE software the programmer usually indicates the file he or she wants to open for editing as source code. Integrated Development Environment or IDE The following figure shows the progression of activity in an IDE as a programmer enters the source code and then directs the IDE to compile and run the program. C, C++, C#, Java, and Swift are examples of compiled programming languages. JavaScript, Perl, Python, and Ruby are examples of interpreted programming languages. Programs written in a high-level language are either directly executed by some kind of interpreter or converted into machine code by a compiler (and assembler and linker) for the CPU to execute. Thus the name: Integrated Development Environment or IDE. However, this one program is really many software items that create an environment used by programmers to develop software. However, today all those software programs with their associated tasks have been integrated into one program. Historically, we had to use several software programs (a text editor, a compiler, a linker, and operating system commands) to make the conversion and run our program. There are several steps in getting a program from its source code stage to running the program on your computer. The source code produced by the programmer must be converted to an executable machine code file specifically for the computer’s CPU (usually an Intel or Intel-compatible CPU within today’s world of computers). As you might guess for our examples – Assembly, “C”, “C++”, Java, JavaScript, and Python, however, they are just ASCII text files (other text files usually use the extension of. py) is used to identify it as a source code file. High-level language programs are usually written (coded) as ASCII text into a source code file. Many modern IDEs also have a class browser, an object browser, and a class hierarchy diagram, for use in object-oriented software development. 
Sometimes a version control system, or various tools to simplify the construction of a graphical user interface (GUI), are integrated. The boundary between an integrated development environment and other parts of the broader software development environment is not well-defined.
Some IDEs contain a compiler, interpreter, or both. Most modern IDEs have intelligent code completion. An IDE normally consists of a source code editor, build automation tools, and a debugger. An integrated development environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development.
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