Package com.helger.base.string

Class StringCount

java.lang.Object

com.helger.base.string.StringCount

@Immutable
public final class StringCount
extends Object

Helper class for counting things in Strings

Author:

Philip Helger

Method Summary

Modifier and Type	Method	Description
static int	getCharacterCount(int nValue)	Get the number of characters the passed value would occupy in a string representation. Copied from java.lang.Integer#StringSize
static int	getCharacterCount(long nValue)	Get the number of characters the passed value would occupy in a string representation.
static int	getCharCount(char[] aChars, char cSearch)
static int	getCharCount(String s, char cSearch)
static int	getLeadingCharCount(String s, char c)	Get the number of specified chars, the passed string starts with.
static int	getLeadingWhitespaceCount(String s)	Get the number of leading white spaces according to Character.isWhitespace(char)
static int	getLineCount(String s)
static int	getLineCount(String s, char cLineSep)
static int	getOccurrenceCount(String sText, char cSearch)	Count the number of occurrences of cSearch within sText.
static int	getOccurrenceCount(String sText, String sSearch)	Count the number of occurrences of sSearch within sText.
static int	getOccurrenceCountIgnoreCase(String sText, char cSearch, Locale aSortLocale)	Count the number of occurrences of cSearch within sText ignoring case.
static int	getOccurrenceCountIgnoreCase(String sText, String sSearch, Locale aSortLocale)	Count the number of occurrences of sSearch within sText ignoring case.
static int	getTrailingCharCount(String s, char c)	Get the number of specified chars, the passed string ends with.
static int	getTrailingWhitespaceCount(String s)	Get the number of trailing white spaces according to Character.isWhitespace(char)

Methods inherited from class java.lang.Object

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

Method Details

getCharCount

@Nonnegative
@UsedInGeneratedCode
public static int getCharCount(@Nullable
 String s,
 char cSearch)

getCharCount

@Nonnegative
public static int getCharCount(@Nullable
 char[] aChars,
 char cSearch)

getLineCount

@Nonnegative
public static int getLineCount(@Nullable
 String s)

getLineCount

@Nonnegative
public static int getLineCount(@Nullable
 String s,
 char cLineSep)

getCharacterCount

@Nonnegative
public static int getCharacterCount(int nValue)

Get the number of characters the passed value would occupy in a string representation.
Copied from java.lang.Integer#StringSize

Parameters:

nValue - The integer value to check. May be be positive or negative.

Returns:

Number of characters required. Always > 0.

getCharacterCount

@Nonnegative
public static int getCharacterCount(long nValue)

Get the number of characters the passed value would occupy in a string representation.

Parameters:

nValue - The long value to check. May be be positive or negative.

Returns:

Number of characters required. Always > 0.

getOccurrenceCount

@Nonnegative
public static int getOccurrenceCount(@Nullable
 String sText,
 @Nullable
 String sSearch)

Count the number of occurrences of sSearch within sText.

Parameters:

sText - The text to search in. May be null.

sSearch - The text to search for. May be null.

Returns:

A non-negative number of occurrences.

getOccurrenceCountIgnoreCase

@Nonnegative
public static int getOccurrenceCountIgnoreCase(@Nullable
 String sText,
 @Nullable
 String sSearch,
 @Nonnull
 Locale aSortLocale)

Count the number of occurrences of sSearch within sText ignoring case.

Parameters:

sText - The text to search in. May be null.

sSearch - The text to search for. May be null.

aSortLocale - The locale to be used for case unifying.

Returns:

A non-negative number of occurrences.

getOccurrenceCount

@Nonnegative
@DevelopersNote("This is the same as getCharCount")
public static int getOccurrenceCount(@Nullable
 String sText,
 char cSearch)

Count the number of occurrences of cSearch within sText.

Parameters:

sText - The text to search in. May be null.

cSearch - The character to search for.

Returns:

A non-negative number of occurrences.

getOccurrenceCountIgnoreCase

@Nonnegative
public static int getOccurrenceCountIgnoreCase(@Nullable
 String sText,
 char cSearch,
 @Nonnull
 Locale aSortLocale)

Count the number of occurrences of cSearch within sText ignoring case.

Parameters:

sText - The text to search in. May be null.

cSearch - The character to search for.

aSortLocale - The locale to be used for case unifying.

Returns:

A non-negative number of occurrences.

getLeadingWhitespaceCount

@Nonnegative
public static int getLeadingWhitespaceCount(@Nullable
 String s)

Get the number of leading white spaces according to Character.isWhitespace(char)

Parameters:

s - The string to be parsed. May be null.

Returns:

Always ≥ 0.

getTrailingWhitespaceCount

@Nonnegative
public static int getTrailingWhitespaceCount(@Nullable
 String s)

Get the number of trailing white spaces according to Character.isWhitespace(char)

Parameters:

s - The string to be parsed. May be null.

Returns:

Always ≥ 0.

getLeadingCharCount

@Nonnegative
public static int getLeadingCharCount(@Nullable
 String s,
 char c)

Get the number of specified chars, the passed string starts with.

Parameters:

s - The string to be parsed. May be null.

c - The char to be searched.

Returns:

Always ≥ 0.

getTrailingCharCount

@Nonnegative
public static int getTrailingCharCount(@Nullable
 String s,
 char c)

Get the number of specified chars, the passed string ends with.

Parameters:

s - The string to be parsed. May be null.

c - The char to be searched.

Returns:

Always ≥ 0.