Exception Handling in Java
What is an Exception?
If Java Runtime Environment (JRE) encounters any exception it simply terminates the execution and returns an exception message stating the error message.
Exception Clauses
1. try
Program statements that are expected to throw/raise exception should be written in the try block.
2. catch
Catch block is responsible for catching the exceptions thrown by try block. JRE throws exceptions implicitly.
3. throw
To throw exception manually throw clause is used.
4. throws
To indicate that a method may throw exception we use throws clause.
5. finally
This block is executed regardless of exception state, does not depend if the exception is handled or not.
Basic Structure of Exception Handling in Java
try{
}
catch(){
}
finally{
}