Java Standard Edition provides 14 packages namely –applet − This package provides classes and methods to create and communicate with the applets.awt− This package provides classes and methods to create user interfaces.beans− This package contains classes and methods to develop components based on java beans. io− This package contains classes and methods to read and write data standard input and output devices, streams and files.lang− This package contains the fundamental classes, methods, and, interfaces of Java language.math− This package contains classes and methods which helps you to perform arithmetic operations using the Java language.net− This package provides classes to implement networking ... Read More

You have to use the fdatasync(fd) function to force write of file with filedescriptor fd to disk. It does not force update of metadata. Also note that this is only available on Unix.A more cross platform solution would be to use fsync(fd) as it force write of file with filedescriptor fd to disk. On Unix, this calls the native fsync() function; on Windows, the MS _commit() function.Exampleimport os, sys # Open a file fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT ) os.write(fd, "This is test") # Now you can use fsync() method. os.fsync(fd) # Now read this file from the beginning os.lseek(fd, ... Read More

A fully object-oriented language needs to have all the 4 oops concepts. In addition to that, all predefined and, user-defined types must be objects and, all the operations should be performed only by calling the methods of a class.Though java follows all the four object-oriented concepts,Java has predefined primitive data types (which are not objects).You can access the members of a static class without creating an object of it.Therefore, Java is not considered as fully object-oriented Technology.

Java Virtual machine is the program which accepts .class files as input and converts this to system executable code.The class loader is a module in JVM it loads, links and, initialize a program.Loads the class into the memory.Verifies the byte code instructions.Allocates memory for the program.

Maven is a build tool which is based on the concept of a project object model (POM), Maven can manage a project's build, reporting, and documentation from a central piece of information. Using maven, we can build and manage any Java-based project. In case of multiple development teams environment, Maven can set-up the way to work as per standards in a very short time. As most of the project setups are simple and reusable, Maven makes a life of developer easy while creating reports, checks, build and testing automation setups. Maven provides developers with ways to manage the following: ... Read More

Filesystem information, in Python, is defined as the attributes and metadata linked with a file or directory, such as its name, size, timestamps, permissions, ownership, and type. There are various modules in Python like os and os.path to work with the file system and fetch this information. Obtaining access to filesystem information allows developers to work with files and directories, carry out operations like creation and deletion, and take informed decisions within their code. To fetch file system information using Python, you can utilize the os module; it provides several functions for interacting with the operating system. In particular, the ... Read More

Java Virtual Machine is an abstract computing machine which is used to run the java program. JVM accepts byte code, loads it and translates it into system understandable code.

Java uses javac (compiler) to convert the java code to byte code (.class file). Then, JVM internally converts the byte code to system understandable code using the interpreter in addition to it JVM. Instead of executing a piece of code, again and again, JVM identifies them as “hot spots” and compiles them using Just in time compiler and, later reuses the same when required. Just in Time compiler is a compiler which is used by JVM internally to translate the hot spots in the byte code to machine understandable code. The main purpose of JIT compiler is to do heavy ... Read More

To get stat of a file, method stat() from the os module can be used. It performs a stat system call on the given path. For example,import os st = os.stat("file.dat")This function takes the name of a file, and returns a 10-member tuple with the following contents:(mode, ino, dev, nlink, uid, gid, size, atime, mtime, ctime)The mode variable gives you the information about file permissions. You can get it by st[0]. You can read more about interpreting the tuple here: http://effbot.org/zone/python-fileinfo.htm

We have to realize that in the world of Python programming, obtaining file statistics plays a critical role in processing and manipulating files effectively. It does not matter if you are a novice or an experienced coder; this article will surely guide you through the process of retrieving file stats using Python. By taking a deep dive into the intricacies of file handling and unleashing the potential of Python's built-in functions, we will empower you with the knowledge to effortlessly access valuable statistical data about your files. Understanding File Stats Before we begin exploring the code examples, let us make ... Read More