Klasse StringUtils

java.lang.Object

com.flexganttfx.core.StringUtils

public class StringUtils
extends Object

A couple of utility methods for working with strings.

Seit:

1.0

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
StringUtils()

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
static boolean	isBlank(String str)	Checks if a String is whitespace, empty ("") or null.
static boolean	isEmpty(String str)	Checks if a String is empty ("") or null.
static boolean	isNotBlank(String str)	Checks if a String is not empty (""), not null and not whitespace only.
static boolean	isNotEmpty(String str)	Checks if a String is not empty ("") and not null.

Von Klasse geerbte Methoden java.lang.Object

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

Konstruktordetails

StringUtils

public StringUtils()

Methodendetails

isEmpty

public static boolean isEmpty(String str)

Checks if a String is empty ("") or null.

 StringUtils.isEmpty(null)      = true
 StringUtils.isEmpty("")        = true
 StringUtils.isEmpty(" ")       = false
 StringUtils.isEmpty("bob")     = false
 StringUtils.isEmpty("  bob  ") = false
 

Parameter:

str - the String to check, may be null

Gibt zurück:

true if the String is empty or null

Seit:

1.0

isNotEmpty

public static boolean isNotEmpty(String str)

Checks if a String is not empty ("") and not null.

 StringUtils.isNotEmpty(null)      = false
 StringUtils.isNotEmpty("")        = false
 StringUtils.isNotEmpty(" ")       = true
 StringUtils.isNotEmpty("bob")     = true
 StringUtils.isNotEmpty("  bob  ") = true
 

Parameter:

str - the String to check, may be null

Gibt zurück:

true if the String is not empty and not null

Seit:

1.0

isBlank

public static boolean isBlank(String str)

Checks if a String is whitespace, empty ("") or null.

 StringUtils.isBlank(null)      = true
 StringUtils.isBlank("")        = true
 StringUtils.isBlank(" ")       = true
 StringUtils.isBlank("bob")     = false
 StringUtils.isBlank("  bob  ") = false
 

Parameter:

str - the String to check, may be null

Gibt zurück:

true if the String is null, empty or whitespace

Seit:

1.0

isNotBlank

public static boolean isNotBlank(String str)

Checks if a String is not empty (""), not null and not whitespace only.

 StringUtils.isNotBlank(null)      = false
 StringUtils.isNotBlank("")        = false
 StringUtils.isNotBlank(" ")       = false
 StringUtils.isNotBlank("bob")     = true
 StringUtils.isNotBlank("  bob  ") = true
 

Parameter:

str - the String to check, may be null

Gibt zurück:

true if the String is not empty and not null and not whitespace

Seit:

1.0