THE PACKAGE JAVA.LANG

java.lang.String

20.12

20.12.9

public boolean equals(Object anObject)

The result is

true

 if and only if the argument is not

null

 and is a

String

 object

that represents the same sequence of characters as this

String

 object.

Overrides the

equals

 method of

Object

 ( 20.1.3).

See also the methods

equalsIgnoreCase

 ( 20.12.16) and

compareTo

( 20.12.17).

20.12.10

public int hashCode()

The hashcode for a

String

 object is computed in one of two ways, depending on

its length. Let

n

 be the length ( 20.12.11) of the character sequence and let

c

i

mean the character with index

i

.

If

n

15 , then the hashcode is computed as

n

  1

i

c

i

37

i

= 0

 using

int

 arithmetic.

If

n

> 15 , then the hashcode is computed as

m

i

c

i

k

39

i

= 0

using

int

 arithmetic, where

k

n

=

 and

m

n

=

, sampling only eight or

nine characters of the string.

8

k

Overrides the

hashCode

 method of

Object

 ( 20.1.4).

20.12.11

public int length()

The length of the sequence of characters represented by this

String

 object is

returned.

535