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Making a thread sleep means pausing its execution for some specified amount of time. Java provides 2 methods in which a thread execution can be paused and this article will…

Copying a file means creating a duplicate file at some other location. Copying involves reading the file and writing its contents to a new location. There are many methods to…

A file and directory in java can be deleted by using delete method on java.io.File object which points to the underlying physical file or directory. delete method will delete a…

Instance variables are the variables that are defined at the class level. Class level means they are defined inside the class body but outside of any method or block. Instance…

static keyword static is a reserved word(or keyword) in java. It can be applied before a field(or instance member) method class unnamed block Writing static keyword before any of the…

In a multi-threaded application where multiple threads are accessing a resource at the same time, it becomes necessary to handle concurrent modifications. Suppose a file is being written by a…

Scanner class belongs to java.util package and its primary use is to take input from user in java. This class has methods which are used to take input of different…