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File exception error victoria 2
File exception error victoria 2









file exception error victoria 2 file exception error victoria 2 file exception error victoria 2

OutputįilenotFound_Demo.java:8: error: unreported exception FileNotFoundException must be caught or declared to be thrown If you try to compile the above program, you will get the following exceptions. These exceptions cannot simply be ignored, the programmer should take care of (handle) these exceptions.įor example, if you use FileReader class in your program to read data from a file, if the file specified in its constructor doesn't exist, then a FileNotFoundException occurs, and the compiler prompts the programmer to handle the exception. You need to understand them to know how exception handling works in Java.Ĭhecked exceptions − A checked exception is an exception that is checked (notified) by the compiler at compilation-time, these are also called as compile time exceptions. Some of these exceptions are caused by user error, others by programmer error, and others by physical resources that have failed in some manner.īased on these, we have three categories of Exceptions. Following are some scenarios where an exception occurs.Ī file that needs to be opened cannot be found.Ī network connection has been lost in the middle of communications or the JVM has run out of memory. When an Exception occurs the normal flow of the program is disrupted and the program/Application terminates abnormally, which is not recommended, therefore, these exceptions are to be handled.Īn exception can occur for many different reasons. An exception (or exceptional event) is a problem that arises during the execution of a program.











File exception error victoria 2