Latest Posts From Jayant Verma

The System.exit() method terminates the Java virtual machine. This method takes an argument, which is the status code passed to the caller. A status code of zero signifies a normal exit whereas a status code….

Lists in Java are ordered collection of data, whereas sets are an unordered collection of data. A list can have duplicate entries, a set can not. Both the data structures are useful in different scenarios…..

Java Pair class stores two values in the form of a tuple. This can be useful to get a function to return two values. Java has an inbuilt Pair class from Java 8 onwards. That….

Merging two lists in Java is often a useful operation. These lists can be ArrayLists or LinkedLists. How to Merge Two Lists in Java There are multiple ways we can merge two lists in Java…..

Java String replaceAll() replaces all the occurrences of a particular character, string or a regular expression in the string. The method returns a new string as its output. The method requires two parameters. String replaceAll()….

The System class in Java maintains a set of properties. These properties are stored in the form of key/value pairs. Both keys and values are Strings that define traits or attributes of the current working environment. There….

It’s the Addition assignment operator. Let’s understand the += operator in Java and learn to use it for our day to day programming. x += y in Java is the same as x = x….

Inodes in Linux is a data structure that stores metadata about files. The inode is short for index node. It contains the following information about a file : User ID of the file Group ID….

/proc is a directory in the Linux system that contains information about the system. /proc is not a real file system, rather a virtual file system. It is sometimes also referred to as a process….

Shell is a command-line interpreter that allows the user to interact with the system. It is responsible for taking inputs from the user and displaying the output. Shell scripts are a series of commands written….