File handling implies how to read from and write to file in java. • Java provides the basic I/O package for reading and writing streams. • File class from the java.io package, allows do all input and output operations with different formats of files. • In order to use the File class, you need to create an object of the class and specify the filename or directory name. File class in java is particularly useful for retrieving information about files or directories fromdisk. • File class is used to perform the following activities: • Check if a file exists • Before you can do anything with the file system or File class, you must obtain a File instance. • Here is how that is done: Example: File file = new File("DriveLetter\\folderName\\fileName.txt"); Note: Objects of class File do not open files or provide any file-processing capabilities • Createfile/folder • Read the length of a file...
WHAT IS EXCEPTION HANDLING IN JAVA ? Exception is an abnormal condition.(Dictionary Meaning) In Java, an exception is an event that disrupts the normal flow of the program. It is an object which is thrown at runtime. In computing and computer programming, exception handling is the process of responding to the execution of a program (Wikipedia Definition). 3 occurrence of exceptions , anomalous or exceptional conditions requiring special processing during the In general, an exception breaks the normal flow of execution and executes a pre-registered exception handler; the details of how this is done depend on whether it is a hardware or software exception and how the software exception is implemented. Exception handling deals with these events to avoid the program or system crashing, and without this process, exceptions would disrupt the normal operation of a program. Exceptions occur for num...