[HD-OCP17/21-Fundamentals Pg 401, Sec. 15.2.2 - common-exceptions-that-are-usually-thrown-by-the-jvmexceptions-thrown-by

[raphaelzintec]

Error in page 436

Code: Select all

int[] ia = new int[]{ 1, 2, 3}; // ia is of length 3
System.out.println(ia[-1]); //ArrayIndexOutOfBoundsException
System.out.println(ia[3]); //ArrayIndexOutOfBoundsException
System.out.println("0123".charAt(4)); //StringIndexOutOfBoundsException

Page 300
char charAt(int index) - Returns the char value at the specified index. Throws IndexOutOfBoundsException if the index argument is negative or is not less than the length of this string.

Java doc says charAt throws IndexOutOfBoundsException

[admin]

It actually throws ArrayIndexOutOfBoundsException.

[raphaelzintec]

System.out.println("0123".charAt(4));
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4

[raphaelzintec]

but java doc says IndexOutOfBoundsException

so now either page 436 has error either 300

[admin]

Sorry, my bad, the code in charAt method throws SIOOBE. Since SIOOBE extends IOOBE, the contract published by the JavaDoc is satisfied.
The book correctly explains this, "Methods of String class throw another of its subclass StringIndexOutOfBoundsException when you try to access a character at an invalid index."