HANDLING EXCEPTIONS AND EVENTS - Java Programming: From Problem Analysis to Program Design - page 738

TABLE 11-3 Some of Java's Exception Classes (continued)

Exception Class Description

NumberFormatException Use of an illegal number format

A string index is either less than 0 or
greater than or equal to the length of
the string.

StringIndexOutOfBoundsException

Input (token) retrieved does not
match the pattern for the expected
type, or the token is out of range for
the expected type.

InputMismatchException

The Java application programs in the preceding chapters used the class Scanner and its
methods nextInt , nextDouble , next , and nextLine to input data into the programs.
As shown by Sample Run 3 of Example 11-1, if the user enters an invalid value, the
program terminates with an error message indicating an InputMismatchException .
This exception is thrown by the method nextInt . In addition to the
InputMismatchException , the methods nextInt and nextDouble can throw other
exceptions, as shown in Tables 11-4 and 11-5.

TABLE 11-4 Exceptions Thrown by the Method nextInt

Exception Thrown Description

If the next input (token) is not an integer or
is out of range

InputMismatchException

NoSuchElementException

If the input is exhausted

IllegalStateException

If this scanner is closed

TABLE 11-5 Exceptions Thrown by the Method nextDouble

Exception Thrown Description

If the next input (token) is not a floating-
point number or is out of range

InputMismatchException

NoSuchElementException If the input is exhausted

IllegalStateException

If this scanner is closed