org.cybergarage.util

Class StringUtil

java.lang.Object

org.cybergarage.util.StringUtil

public final class StringUtil
extends Object

Utility class for string manipulation and conversion operations. This class provides static methods for string validation, type conversion, character searching, and custom trimming operations.

Constructor Summary

Constructors

Constructor and Description
StringUtil()

Method Summary

Modifier and Type	Method and Description
static int	findFirstNotOf(String str, String chars) Finds the first character that is NOT in the specified character set.
static int	findFirstOf(String str, String chars) Finds the first occurrence of any character from the specified set.
static int	findLastNotOf(String str, String chars) Finds the last character that is NOT in the specified character set.
static int	findLastOf(String str, String chars) Finds the last occurrence of any character from the specified set.
static int	findOf(String str, String chars, int startIdx, int endIdx, int offset, boolean isEqual) Generic character finding method with customizable search parameters.
static boolean	hasData(String value) Checks if a string contains valid data (not null and not empty).
static int	toInteger(String value) Converts a string to an integer value.
static long	toLong(String value) Converts a string to a long value.
static String	trim(String trimStr, String trimChars) Trims specified characters from both ends of a string.

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

findFirstNotOf

public static final int findFirstNotOf(String str,
                                       String chars)

Finds the first character that is NOT in the specified character set.

Parameters:

str - string to search in

chars - characters to exclude from search

Returns:

index of first non-matching character, or -1 if not found

findFirstOf

public static final int findFirstOf(String str,
                                    String chars)

Finds the first occurrence of any character from the specified set.

Parameters:

str - string to search in

chars - characters to search for

Returns:

index of first matching character, or -1 if not found

findLastNotOf

public static final int findLastNotOf(String str,
                                      String chars)

Finds the last character that is NOT in the specified character set.

Parameters:

str - string to search in

chars - characters to exclude from search

Returns:

index of last non-matching character, or -1 if not found

findLastOf

public static final int findLastOf(String str,
                                   String chars)

Finds the last occurrence of any character from the specified set.

Parameters:

str - string to search in

chars - characters to search for

Returns:

index of last matching character, or -1 if not found

findOf

public static final int findOf(String str,
                               String chars,
                               int startIdx,
                               int endIdx,
                               int offset,
                               boolean isEqual)

Generic character finding method with customizable search parameters.

Parameters:

str - the string to search in

chars - the characters to search for

startIdx - the starting index

endIdx - the ending index

offset - the search direction (1 for forward, -1 for backward)

isEqual - true to find matching characters, false to find non-matching

Returns:

the index of the found character, or -1 if not found

hasData

public static final boolean hasData(String value)

Checks if a string contains valid data (not null and not empty).

Parameters:

value - the string to check

Returns:

true if the string is not null and has length > 0, false otherwise

toInteger

public static final int toInteger(String value)

Converts a string to an integer value.

Parameters:

value - the string to convert

Returns:

the integer value, or 0 if conversion fails

toLong

public static final long toLong(String value)

Converts a string to a long value.

Parameters:

value - the string to convert

Returns:

the long value, or 0 if conversion fails

trim

public static final String trim(String trimStr,
                                String trimChars)

Trims specified characters from both ends of a string.

Parameters:

trimStr - string to trim

trimChars - characters to remove from both ends

Returns:

trimmed string