Exceptions: Difference between revisions

==[Java]==

===Defining exceptions===

//Checked exception

public class MyException extends Exception {

//Put specific info in here

}

//Unchecked exception

public class MyRuntimeException extends RuntimeException {}

===Throw exceptions===

public void fooChecked() throws MyException {

throw new MyException();

}

public void fooUnchecked() {

throw new MyRuntimeException();

}

===Catching exceptions===

try {

fooChecked();

}

catch(MyException exc) {

//Catch only your specified type of exception

}

catch(Exception exc) {

//Catch any non-system error exception

}

catch(Throwable exc) {

//Catch everything including system errors (not recommended)

}

finally {

//This code is always executed after exiting the try block

}