jodd.util
Class RandomStringUtil

java.lang.Object
  jodd.util.RandomStringUtil

public class RandomStringUtil
extends java.lang.Object

Generates random strings.

Field Summary

protected static char[]	ALPHA_NUMERIC_RANGE
protected static char[]	ALPHA_RANGE
protected static java.util.Random	rnd

Constructor Summary

RandomStringUtil()

Method Summary

static java.lang.String	random(int count, char[] chars) Creates random string whose length is the number of characters specified.
static java.lang.String	random(int count, char start, char end) Creates random string whose length is the number of characters specified.
static java.lang.String	random(int count, java.lang.String chars) Creates random string whose length is the number of characters specified.
static java.lang.String	randomAlpha(int count) Creates random string of characters.
static java.lang.String	randomAlphaNumeric(int count) Creates random string of characters and digits.
static java.lang.String	randomAscii(int count) Creates random string whose length is the number of characters specified.
static java.lang.String	randomNumeric(int count) Creates random string that consist only of numbers.
static java.lang.String	randomRanges(int count, char... ranges) Creates random string whose length is the number of characters specified.

Methods inherited from class java.lang.Object

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

Field Detail

rnd

protected static final java.util.Random rnd

ALPHA_RANGE

protected static final char[] ALPHA_RANGE

ALPHA_NUMERIC_RANGE

protected static final char[] ALPHA_NUMERIC_RANGE

Constructor Detail

RandomStringUtil

public RandomStringUtil()

Method Detail

random

public static java.lang.String random(int count,
                                      char[] chars)

Creates random string whose length is the number of characters specified. Characters are chosen from the set of characters specified.

random

public static java.lang.String random(int count,
                                      java.lang.String chars)

Creates random string whose length is the number of characters specified. Characters are chosen from the set of characters specified.

random

public static java.lang.String random(int count,
                                      char start,
                                      char end)

Creates random string whose length is the number of characters specified. Characters are chosen from the provided range.

randomAscii

public static java.lang.String randomAscii(int count)

Creates random string whose length is the number of characters specified. Characters are chosen from the set of characters whose ASCII value is between 32 and 126 (inclusive).

randomNumeric

public static java.lang.String randomNumeric(int count)

Creates random string that consist only of numbers.

randomRanges

public static java.lang.String randomRanges(int count,
                                            char... ranges)

Creates random string whose length is the number of characters specified. Characters are chosen from the multiple sets defined by range pairs. All ranges must be in acceding order.

randomAlpha

public static java.lang.String randomAlpha(int count)

Creates random string of characters.

randomAlphaNumeric

public static java.lang.String randomAlphaNumeric(int count)

Creates random string of characters and digits.