Package de.fraunhofer.iese.mydata.util

Class RandomStringUtil

java.lang.Object

de.fraunhofer.iese.mydata.util.RandomStringUtil

public class RandomStringUtil
extends Object

Generate a random string

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ALPHANUM	Alphanumeric characters
static final String	ALPHANUMSPECIAL	Alphanumeric characters and special chars
static final String	DIGITS	Digits
static final String	LOWER	Lower case letters
static final String	SPECIAL	Special characters that you can also use in URL parameters without coding
static final String	UPPER	Upper case letters

Constructor Summary

Constructors

Constructor	Description
RandomStringUtil()	Create session identifiers.
RandomStringUtil(int length)	Create an alphanumeric strings from a secure generator.
RandomStringUtil(int length, String symbols)
RandomStringUtil(int length, Random random)	Create an alphanumeric string generator.
RandomStringUtil(int length, Random random, String symbols)

Method Summary

Modifier and Type	Method	Description
String	generateString()	Generate a random string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

UPPER

public static final String UPPER

Upper case letters

See Also:

• Constant Field Values

LOWER

public static final String LOWER

Lower case letters

DIGITS

public static final String DIGITS

Digits

See Also:

• Constant Field Values

SPECIAL

public static final String SPECIAL

Special characters that you can also use in URL parameters without coding

See Also:

• Constant Field Values

ALPHANUM

public static final String ALPHANUM

Alphanumeric characters

ALPHANUMSPECIAL

public static final String ALPHANUMSPECIAL

Alphanumeric characters and special chars

Constructor Details

RandomStringUtil

public RandomStringUtil(int length,
 Random random,
 String symbols)

Parameters:

length - Length of the random string to be generated

random - Random instance to be used to generate the random string

symbols - Symbols to be used to generate the random string

RandomStringUtil

public RandomStringUtil(int length,
 String symbols)

Parameters:

length - Length of the random string to be generated

symbols - Symbols to be used to generate the random string

RandomStringUtil

public RandomStringUtil(int length,
 Random random)

Create an alphanumeric string generator.

Parameters:

length - Length of the random string to be generated

random - Random instance to be used to generate the random string

RandomStringUtil

public RandomStringUtil(int length)

Create an alphanumeric strings from a secure generator.

Parameters:

length - Length of the random string to be generated

RandomStringUtil

public RandomStringUtil()

Create session identifiers.

Method Details

generateString

public String generateString()

Generate a random string.

Returns:

a random string