Java Errors and Exception Types
Errors and Exception Types
The table below shows a list of common Error and Exception types in Java:
| Error/Exception | Description |
|---|---|
| ArithmeticError | Occurs when a numeric calculation goes wrong |
| ArrayIndexOutOfBoundsException | Occurs when trying to access an index number that does not exist in an array |
| ClassFormatError | Occurs when a class file cannot be accessed |
| ClassNotFoundException | Occurs when trying to access a class that does not exist |
| ConcurrentModificationException | Occurs when an element is added or removed from iterables |
| FileNotFoundException | Occurs when a file cannot be accessed |
| IncompatibleClassChangeError | Occurs when there's been a change in a base class after a child class has already been initialized |
| InputMismatchException | Occurs when entering wrong input (e.g. text in a numerical input) |
| InterruptedException | Occurs when a Thread is interrupted while waiting/sleeping |
| InvalidClassException | Occurs when the Serialization runtime observes a problem with a class |
| IOException | Occurs when an input or output operation fails |
| NegativeArraySizeException | Occurs when trying to create an array with negative size |
| NoClassDefFoundError | Occurs when the class is not found at runtime |
| NoSuchFieldException | Occurs when trying to access a class field/variable that does not exist |
| NoSuchMethodException | Occurs when trying to access a class method that does not exist |
| NullPointerException | Occurs when trying to access an object referece that is null |
| NumberFormatException | Occurs when it is not possible to convert a specified string to a numeric type |
| RuntimeException | Occurs when an exception occurs at runtime |
| StringIndexOutOfBoundsException | Occurs when trying to access a character in a String that does not exist |
| TypeNotPresentException | Occurs when a type cannot be found |
| IllegalArgumentException | Occurs when when an illegal argument is passed to a method |
| IllegalStateException | Occurs when when a method is called at an illegal time |
