net.lessy.util
Class StringUtil

java.lang.Object
  net.lessy.util.StringUtil

public class StringUtil
extends Object

All kind of String-Utility Methods

Author:

Hans Lesmeister

Constructor Summary

StringUtil()

Method Summary

static StringBuilder	concatenate(Object... objects) Concats an array of objects
static String	concatenateNotEmpty(String s1, String s2) Concats 2 objects separated by a space.
static String	concatenateNotEmpty(String sep, String s1, String s2) Concats 2 objects with an optional separator.
static boolean	isEmpty(String s) Prueft ob uebergebene Zeichenkette null oder ist bzw nur aus white spaces besteht.
static String	objectToString(Object obj) Gets the toString-Version of the passed object or null if the object is null
static String	objectToString(Object obj, String defValue) Gets the toString-Version of the passed object or the passed default if the object is null
static String	toUpperLower(String value) Converts a String to the Format "Xxxxxx".
static String	trim(String value) Trim with respect of Nullpointer

Methods inherited from class java.lang.Object

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

Constructor Detail

StringUtil

public StringUtil()

Method Detail

trim

public static String trim(String value)

Trim with respect of Nullpointer

Parameters:

value - The value to be trimmed

Returns:

Trimmed String or null if the passed String was null

concatenate

public static StringBuilder concatenate(Object... objects)

Concats an array of objects

Parameters:

objects - Objects

Returns:

Concatenated

concatenateNotEmpty

public static String concatenateNotEmpty(String sep,
                                         String s1,
                                         String s2)

Concats 2 objects with an optional separator. Sep. is only inserted if objects are both not null

Returns:

Concatenated string

concatenateNotEmpty

public static String concatenateNotEmpty(String s1,
                                         String s2)

Concats 2 objects separated by a space. Sep. is only inserted if objects are both not null

Returns:

Concatenated string

isEmpty

public static boolean isEmpty(String s)

Prueft ob uebergebene Zeichenkette null oder ist bzw nur aus white spaces besteht.

Returns:

true, wenn Zeichenkette aus mindestens einem nocn-white-space Zeichen besteht, ansonsten false

objectToString

public static String objectToString(Object obj)

Gets the toString-Version of the passed object or null if the object is null

Parameters:

obj - Object

Returns:

String-Representation or null

objectToString

public static String objectToString(Object obj,
                                    String defValue)

Gets the toString-Version of the passed object or the passed default if the object is null

Parameters:

obj - Object

defValue - To be returned if obj is null

Returns:

String-Representation or defValue

toUpperLower

public static String toUpperLower(String value)

Converts a String to the Format "Xxxxxx".