Exceptions and exception handling

Introduction

Objects of type Throwable and its subtypes can be sent up the stack with the throw keyword and caught with try…catch statements.

Syntax

• void someMethod() throws SomeException { } //method declaration, forces method callers to catch if SomeException is a checked exception type
• try {

someMethod(); //code that might throw an exception

}

• catch (SomeException e) {

System.out.println("SomeException was thrown!"); //code that will run if certain exception (SomeException) is thrown
}

• finally {

//code that will always run, whether try block finishes or not
}