The EOF is a special
character, whose ASCII value is 26, which indicates the end of a file in text
mode of file. While writing data to a file, this character is inserted
automatically after the last character in the file to mark the end of file. If
this character is detected at any point in the file, the read function would
return the EOF signal to the program indicating the last point of file. An
attempt to read after EOF might either cause the program to terminate with an
error or result in an infinite loop situation. Thus, the last point of file is
detected using EOF while reading data from file. Without this mark, we can not
detect last character at the file such that it is difficult to find up to what
time the character is to be read while reading data from the file.
An applet is a special kind of Java program that is designed to be transmitted over the Internet and automatically executed by a Java-compatible web browser. Furthermore, an applet is downloaded on demand, without further interaction with the user. If the user clicks a link that contains an applet, the applet will be automatically downloaded and run in the browser. Applets are intended to be small programs. They are typically used to display data provided by the server, handle user input, or provide simple functions, such as a loan calculator, that execute locally, rather than on the server. In essence, the applet allows some functionality to be moved from the server to the client.
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