org.eclipse.scada.utils.str

Class StringHelper

java.lang.Object

org.eclipse.scada.utils.str.StringHelper

public class StringHelper
extends Object

A helper class for string operations

Author:

Jens Reimann

Constructor Summary

Constructors

Constructor and Description
StringHelper()

Method Summary

Modifier and Type	Method and Description
static String	join(Collection<?> items, String delimiter) Join a collection of objects to a string using a delimiter.
static String	join(Collection<?> items, String delimiter, Apply<String> toApply)
static String	join(Object[] items, String delimiter) Join a collection of objects to a string using a delimiter.
static String	toHex(byte[] data) Convert byte array to hex string
static String	toLowerFirst(String text) Make the first character of a string lowercase
static String	toUpperFirst(String text) Make the first character of a string uppercase

Methods inherited from class java.lang.Object

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

Constructor Detail

StringHelper

public StringHelper()

Method Detail

join

public static String join(Collection<?> items,
                          String delimiter)

Join a collection of objects to a string using a delimiter. The method will take the Object.toString() result of each collection member and add it to the result string. Delimiters are only placed between elements

Parameters:

items - The items to convert

delimiter - the delimiter to use

Returns:

the result string

join

public static String join(Collection<?> items,
                          String delimiter,
                          Apply<String> toApply)

join

public static String join(Object[] items,
                          String delimiter)

Join a collection of objects to a string using a delimiter. The method will take the Object.toString() result of each collection member and add it to the result string. Delimiters are only placed between elements

Parameters:

items - The items to convert

delimiter - the delimiter to use

Returns:

the result string

toUpperFirst

public static String toUpperFirst(String text)

Make the first character of a string uppercase

Parameters:

text - the string, may be null

Returns:

the result, or null if the input was null

toLowerFirst

public static String toLowerFirst(String text)

Make the first character of a string lowercase

Parameters:

text - the string, may be null

Returns:

the result, or null if the input was null

toHex

public static String toHex(byte[] data)

Convert byte array to hex string

Parameters:

data - the data to convert

Returns:

a hex string, lower case, no delimiters