pl.jalokim.utils.string

Class StringUtils

java.lang.Object

pl.jalokim.utils.string.StringUtils

public final class StringUtils
extends Object

Utils methods for String.

Method Summary

Modifier and Type	Method and Description
static String	concat(String... texts) concatenate all elements with empty string value.
static <E> String	concatElements(Collection<E> collection) Concatenate elements with empty text.
static <E> String	concatElements(Collection<E> collection, Function<E,String> mapper) Concatenate elements with empty text with mapper from E type to String.
static <E> String	concatElements(Collection<E> collection, Function<E,String> mapper, String joinText) Concatenate elements with joinText value with mapper from E type to String.
static <E> String	concatElements(Collection<E> collection, String joinText) Concatenate elements with joinText value.
static <E> String	concatElements(String textPrefix, Collection<E> collection, Function<E,String> mapper, String joinText, String textSuffix) Concatenate elements with prefix, join text between all elements and with suffix value with mapper from E type to String.
static <E> String	concatElements(String textPrefix, Collection<E> collection, String joinText, String textSuffix) Concatenate elements with prefix, join text between all elements and with suffix value with mapper from E type to String.
static String	concatElements(String joinText, String... texts) This method concatenate all texts from array with join Text.
static <E> String	concatElementsAsLines(Function<E,String> mapper, E... elements) Return concatenated text from mapped all array elements to text as new lines.
static <E> String	concatElementsAsLines(List<E> elements) Return concatenated text all list elements as new lines.
static <E> String	concatElementsAsLines(List<E> elements, Function<E,String> mapper) Return concatenated text all list elements as new lines.
static String	concatElementsAsLines(Object... elements) Return concatenated text all array elements as new lines.
static String	concatObjects(Object... texts) concatenate all object with empty string value.
static int	countSearchedChar(String text, char searchedChar) It returns number of searched char in provided text.
static boolean	isBlank(String text) If whole text contains only white signs then return true.
static boolean	isEmpty(String text) Check that text is empty or null.
static boolean	isNotBlank(String text) If whole text doesn't contain only white signs then return true.
static boolean	isNotEmpty(String text) Check that text is not empty.
static String	repeatTextNTimes(int nTimes, String text) It create text with n times repeated text.
static String	tabsNTimes(int tabsNumber) It return N times of tabulator.

Methods inherited from class java.lang.Object

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

Method Detail

isEmpty

public static boolean isEmpty(String text)

Check that text is empty or null.

Parameters:

text - to check.

Returns:

boolean value

isNotEmpty

public static boolean isNotEmpty(String text)

Check that text is not empty.

Parameters:

text - to check.

Returns:

boolean value

isBlank

public static boolean isBlank(String text)

If whole text contains only white signs then return true.

Parameters:

text - to check.

Returns:

boolean value

isNotBlank

public static boolean isNotBlank(String text)

If whole text doesn't contain only white signs then return true.

Parameters:

text - to check.

Returns:

boolean value

concatElementsAsLines

public static <E> String concatElementsAsLines(List<E> elements)

Return concatenated text all list elements as new lines.

Parameters:

elements - to concatenate

Returns:

concatenated text.

concatElementsAsLines

public static String concatElementsAsLines(Object... elements)

Return concatenated text all array elements as new lines.

Parameters:

elements - to concatenate

Returns:

concatenated text.

concatElementsAsLines

public static <E> String concatElementsAsLines(Function<E,String> mapper,
                                               E... elements)

Return concatenated text from mapped all array elements to text as new lines.

Parameters:

elements - to concatenate

Returns:

concatenated text.

concatElementsAsLines

public static <E> String concatElementsAsLines(List<E> elements,
                                               Function<E,String> mapper)

Return concatenated text all list elements as new lines.

Type Parameters:

E - generic type for

Parameters:

elements - to concatenate

mapper - for from E type to string

Returns:

concatenated text.

tabsNTimes

public static String tabsNTimes(int tabsNumber)

It return N times of tabulator.

Parameters:

tabsNumber - number of Tabs

Returns:

created n times tabs.

repeatTextNTimes

public static String repeatTextNTimes(int nTimes,
                                      String text)

It create text with n times repeated text.

Parameters:

nTimes - number to repeat

text - value to repeat

Returns:

created n times text.

concatElements

public static <E> String concatElements(Collection<E> collection)

Concatenate elements with empty text. On every object will be called toString().

Type Parameters:

E - generic type of collection.

Parameters:

collection - elements to concatenate

Returns:

concatenated text.

concatElements

public static <E> String concatElements(Collection<E> collection,
                                        Function<E,String> mapper)

Concatenate elements with empty text with mapper from E type to String.

Type Parameters:

E - generic type of collection.

Parameters:

collection - elements to concatenate

mapper - from some type to String

Returns:

concatenated text.

concatElements

public static <E> String concatElements(Collection<E> collection,
                                        String joinText)

Concatenate elements with joinText value.

Type Parameters:

E - generic type of collection.

Parameters:

collection - elements to concatenate

joinText - value between all texts.

Returns:

concatenated text.

concatElements

public static <E> String concatElements(Collection<E> collection,
                                        Function<E,String> mapper,
                                        String joinText)

Concatenate elements with joinText value with mapper from E type to String.

Type Parameters:

E - generic type of collection.

Parameters:

collection - elements to concatenate

mapper - from some type to String

joinText - value between all texts.

Returns:

concatenated text.

concatElements

public static <E> String concatElements(String textPrefix,
                                        Collection<E> collection,
                                        Function<E,String> mapper,
                                        String joinText,
                                        String textSuffix)

Concatenate elements with prefix, join text between all elements and with suffix value with mapper from E type to String.

Type Parameters:

E - generic type of collection.

Parameters:

textPrefix - text before all concatenated text

collection - elements to concatenate

mapper - from some type to String

joinText - value between all texts.

textSuffix - text after all concatenated text

Returns:

concatenated text with empty text.

concatElements

public static <E> String concatElements(String textPrefix,
                                        Collection<E> collection,
                                        String joinText,
                                        String textSuffix)

Concatenate elements with prefix, join text between all elements and with suffix value with mapper from E type to String.

Type Parameters:

E - generic type of collection.

Parameters:

textPrefix - text before all concatenated text

collection - elements to concatenate

joinText - value between all texts.

textSuffix - text after all concatenated text

Returns:

concatenated text with empty text.

concatElements

public static String concatElements(String joinText,
                                    String... texts)

This method concatenate all texts from array with join Text.

Parameters:

joinText - between all varargs.

texts - varargs for text.

Returns:

concatenated text

concat

public static String concat(String... texts)

concatenate all elements with empty string value.

Parameters:

texts - to concatenate

Returns:

concatenated text

concatObjects

public static String concatObjects(Object... texts)

concatenate all object with empty string value.

Parameters:

texts - to concatenate

Returns:

concatenated text

countSearchedChar

public static int countSearchedChar(String text,
                                    char searchedChar)

It returns number of searched char in provided text.

Parameters:

text - for search

searchedChar - char which is searched

Returns:

number how many times it is in this text