9067 * The following are examples of lowercase characters:
9068 * <blockquote><pre>
9069 * a b c d e f g h i j k l m n o p q r s t u v w x y z
9070 * '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6'
9071 * '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE'
9072 * '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6'
9073 * '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'
9074 * </pre></blockquote>
9075 * <p> Many other Unicode characters are lowercase too.
9076 *
9077 * @param codePoint the character (Unicode code point) to be tested.
9078 * @return {@code true} if the character is lowercase;
9079 * {@code false} otherwise.
9080 * @see Character#isLowerCase(int)
9081 * @see Character#isTitleCase(int)
9082 * @see Character#toLowerCase(int)
9083 * @see Character#getType(int)
9084 * @since 1.5
9085 */
9086 public static boolean isLowerCase(int codePoint) {
9087 return getType(codePoint) == Character.LOWERCASE_LETTER ||
9088 CharacterData.of(codePoint).isOtherLowercase(codePoint);
9089 }
9090
9091 /**
9092 * Determines if the specified character is an uppercase character.
9093 * <p>
9094 * A character is uppercase if its general category type, provided by
9095 * {@code Character.getType(ch)}, is {@code UPPERCASE_LETTER}.
9096 * or it has contributory property Other_Uppercase as defined by the Unicode Standard.
9097 * <p>
9098 * The following are examples of uppercase characters:
9099 * <blockquote><pre>
9100 * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
9101 * '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
9102 * '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
9103 * '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
9104 * '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
9105 * </pre></blockquote>
9106 * <p> Many other Unicode characters are uppercase too.
9107 *
9133 * The following are examples of uppercase characters:
9134 * <blockquote><pre>
9135 * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
9136 * '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
9137 * '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
9138 * '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
9139 * '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
9140 * </pre></blockquote>
9141 * <p> Many other Unicode characters are uppercase too.
9142 *
9143 * @param codePoint the character (Unicode code point) to be tested.
9144 * @return {@code true} if the character is uppercase;
9145 * {@code false} otherwise.
9146 * @see Character#isLowerCase(int)
9147 * @see Character#isTitleCase(int)
9148 * @see Character#toUpperCase(int)
9149 * @see Character#getType(int)
9150 * @since 1.5
9151 */
9152 public static boolean isUpperCase(int codePoint) {
9153 return getType(codePoint) == Character.UPPERCASE_LETTER ||
9154 CharacterData.of(codePoint).isOtherUppercase(codePoint);
9155 }
9156
9157 /**
9158 * Determines if the specified character is a titlecase character.
9159 * <p>
9160 * A character is a titlecase character if its general
9161 * category type, provided by {@code Character.getType(ch)},
9162 * is {@code TITLECASE_LETTER}.
9163 * <p>
9164 * Some characters look like pairs of Latin letters. For example, there
9165 * is an uppercase letter that looks like "LJ" and has a corresponding
9166 * lowercase letter that looks like "lj". A third form, which looks like "Lj",
9167 * is the appropriate form to use when rendering a word in lowercase
9168 * with initial capitals, as for a book title.
9169 * <p>
9170 * These are some of the Unicode characters for which this method returns
9171 * {@code true}:
9172 * <ul>
9173 * <li>{@code LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON}
9284 * <li>{@code '\u005Cu0660'} through {@code '\u005Cu0669'},
9285 * Arabic-Indic digits
9286 * <li>{@code '\u005Cu06F0'} through {@code '\u005Cu06F9'},
9287 * Extended Arabic-Indic digits
9288 * <li>{@code '\u005Cu0966'} through {@code '\u005Cu096F'},
9289 * Devanagari digits
9290 * <li>{@code '\u005CuFF10'} through {@code '\u005CuFF19'},
9291 * Fullwidth digits
9292 * </ul>
9293 *
9294 * Many other character ranges contain digits as well.
9295 *
9296 * @param codePoint the character (Unicode code point) to be tested.
9297 * @return {@code true} if the character is a digit;
9298 * {@code false} otherwise.
9299 * @see Character#forDigit(int, int)
9300 * @see Character#getType(int)
9301 * @since 1.5
9302 */
9303 public static boolean isDigit(int codePoint) {
9304 return getType(codePoint) == Character.DECIMAL_DIGIT_NUMBER;
9305 }
9306
9307 /**
9308 * Determines if a character is defined in Unicode.
9309 * <p>
9310 * A character is defined if at least one of the following is true:
9311 * <ul>
9312 * <li>It has an entry in the UnicodeData file.
9313 * <li>It has a value in a range defined by the UnicodeData file.
9314 * </ul>
9315 *
9316 * <p><b>Note:</b> This method cannot handle <a
9317 * href="#supplementary"> supplementary characters</a>. To support
9318 * all Unicode characters, including supplementary characters, use
9319 * the {@link #isDefined(int)} method.
9320 *
9321 * @param ch the character to be tested
9322 * @return {@code true} if the character has a defined meaning
9323 * in Unicode; {@code false} otherwise.
9324 * @see Character#isDigit(char)
|
9067 * The following are examples of lowercase characters:
9068 * <blockquote><pre>
9069 * a b c d e f g h i j k l m n o p q r s t u v w x y z
9070 * '\u00DF' '\u00E0' '\u00E1' '\u00E2' '\u00E3' '\u00E4' '\u00E5' '\u00E6'
9071 * '\u00E7' '\u00E8' '\u00E9' '\u00EA' '\u00EB' '\u00EC' '\u00ED' '\u00EE'
9072 * '\u00EF' '\u00F0' '\u00F1' '\u00F2' '\u00F3' '\u00F4' '\u00F5' '\u00F6'
9073 * '\u00F8' '\u00F9' '\u00FA' '\u00FB' '\u00FC' '\u00FD' '\u00FE' '\u00FF'
9074 * </pre></blockquote>
9075 * <p> Many other Unicode characters are lowercase too.
9076 *
9077 * @param codePoint the character (Unicode code point) to be tested.
9078 * @return {@code true} if the character is lowercase;
9079 * {@code false} otherwise.
9080 * @see Character#isLowerCase(int)
9081 * @see Character#isTitleCase(int)
9082 * @see Character#toLowerCase(int)
9083 * @see Character#getType(int)
9084 * @since 1.5
9085 */
9086 public static boolean isLowerCase(int codePoint) {
9087 return CharacterData.of(codePoint).isLowerCase(codePoint) ||
9088 CharacterData.of(codePoint).isOtherLowercase(codePoint);
9089 }
9090
9091 /**
9092 * Determines if the specified character is an uppercase character.
9093 * <p>
9094 * A character is uppercase if its general category type, provided by
9095 * {@code Character.getType(ch)}, is {@code UPPERCASE_LETTER}.
9096 * or it has contributory property Other_Uppercase as defined by the Unicode Standard.
9097 * <p>
9098 * The following are examples of uppercase characters:
9099 * <blockquote><pre>
9100 * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
9101 * '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
9102 * '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
9103 * '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
9104 * '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
9105 * </pre></blockquote>
9106 * <p> Many other Unicode characters are uppercase too.
9107 *
9133 * The following are examples of uppercase characters:
9134 * <blockquote><pre>
9135 * A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
9136 * '\u00C0' '\u00C1' '\u00C2' '\u00C3' '\u00C4' '\u00C5' '\u00C6' '\u00C7'
9137 * '\u00C8' '\u00C9' '\u00CA' '\u00CB' '\u00CC' '\u00CD' '\u00CE' '\u00CF'
9138 * '\u00D0' '\u00D1' '\u00D2' '\u00D3' '\u00D4' '\u00D5' '\u00D6' '\u00D8'
9139 * '\u00D9' '\u00DA' '\u00DB' '\u00DC' '\u00DD' '\u00DE'
9140 * </pre></blockquote>
9141 * <p> Many other Unicode characters are uppercase too.
9142 *
9143 * @param codePoint the character (Unicode code point) to be tested.
9144 * @return {@code true} if the character is uppercase;
9145 * {@code false} otherwise.
9146 * @see Character#isLowerCase(int)
9147 * @see Character#isTitleCase(int)
9148 * @see Character#toUpperCase(int)
9149 * @see Character#getType(int)
9150 * @since 1.5
9151 */
9152 public static boolean isUpperCase(int codePoint) {
9153 return CharacterData.of(codePoint).isUpperCase(codePoint) ||
9154 CharacterData.of(codePoint).isOtherUppercase(codePoint);
9155 }
9156
9157 /**
9158 * Determines if the specified character is a titlecase character.
9159 * <p>
9160 * A character is a titlecase character if its general
9161 * category type, provided by {@code Character.getType(ch)},
9162 * is {@code TITLECASE_LETTER}.
9163 * <p>
9164 * Some characters look like pairs of Latin letters. For example, there
9165 * is an uppercase letter that looks like "LJ" and has a corresponding
9166 * lowercase letter that looks like "lj". A third form, which looks like "Lj",
9167 * is the appropriate form to use when rendering a word in lowercase
9168 * with initial capitals, as for a book title.
9169 * <p>
9170 * These are some of the Unicode characters for which this method returns
9171 * {@code true}:
9172 * <ul>
9173 * <li>{@code LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON}
9284 * <li>{@code '\u005Cu0660'} through {@code '\u005Cu0669'},
9285 * Arabic-Indic digits
9286 * <li>{@code '\u005Cu06F0'} through {@code '\u005Cu06F9'},
9287 * Extended Arabic-Indic digits
9288 * <li>{@code '\u005Cu0966'} through {@code '\u005Cu096F'},
9289 * Devanagari digits
9290 * <li>{@code '\u005CuFF10'} through {@code '\u005CuFF19'},
9291 * Fullwidth digits
9292 * </ul>
9293 *
9294 * Many other character ranges contain digits as well.
9295 *
9296 * @param codePoint the character (Unicode code point) to be tested.
9297 * @return {@code true} if the character is a digit;
9298 * {@code false} otherwise.
9299 * @see Character#forDigit(int, int)
9300 * @see Character#getType(int)
9301 * @since 1.5
9302 */
9303 public static boolean isDigit(int codePoint) {
9304 return CharacterData.of(codePoint).isDigit(codePoint);
9305 }
9306
9307 /**
9308 * Determines if a character is defined in Unicode.
9309 * <p>
9310 * A character is defined if at least one of the following is true:
9311 * <ul>
9312 * <li>It has an entry in the UnicodeData file.
9313 * <li>It has a value in a range defined by the UnicodeData file.
9314 * </ul>
9315 *
9316 * <p><b>Note:</b> This method cannot handle <a
9317 * href="#supplementary"> supplementary characters</a>. To support
9318 * all Unicode characters, including supplementary characters, use
9319 * the {@link #isDefined(int)} method.
9320 *
9321 * @param ch the character to be tested
9322 * @return {@code true} if the character has a defined meaning
9323 * in Unicode; {@code false} otherwise.
9324 * @see Character#isDigit(char)
|