Example usage for java.lang Character isUpperCase

List of usage examples for java.lang Character isUpperCase

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Introduction

In this page you can find the example usage for java.lang Character isUpperCase.

Prototype

public static boolean isUpperCase(int codePoint)

Source Link

Document

Determines if the specified character (Unicode code point) is an uppercase character.

Usage

From source file:Main.java

public static void main(String[] args) {
    char c = 'A';
    if (Character.isUpperCase(c)) {
        System.out.println(c + " is an uppercase character");
    }// w ww  . j a  v  a 2  s . c  o  m
}

From source file:Main.java

public static void main(String[] args) {
    char symbol = 'A';

    if (Character.isUpperCase(symbol)) {
        System.out.println("true");
    } else {/*from  w  w  w.j  a v a  2s .c o  m*/
        System.out.println("false");
    }
}

From source file:MainClass.java

public static void main(String args[]) {
    System.out.println(Character.isUpperCase('c'));
}

From source file:Main.java

public static void main(String[] args) {
    int cp1 = 0x037e; // represents GREEK QUESTION MARK
    int cp2 = 0x05d1; // represents HEBREW LETTER BET

    boolean b1 = Character.isUpperCase(cp1);
    boolean b2 = Character.isUpperCase(cp2);

    System.out.println(b1);/*from  w w  w. ja  va  2 s.c o m*/
    System.out.println(b2);
}

From source file:MainClass.java

public static void main(String[] args) {
    System.out.println("Is the Latin symbol z a lowercase letter? " + Character.isLowerCase('z'));

    System.out.println("Is the Latin symbol a an uppercase letter? " + Character.isUpperCase('a'));

}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    char ch = 'a';
    if (Character.isLetter(ch)) { // true
    }//w  ww .j  a  v a2s.  co  m
    if (Character.isDigit(ch)) { // false
    }
    if (Character.isLowerCase(ch)) { // true
    }
    if (Character.isUpperCase(ch)) { // false
    }
}

From source file:IsDemo.java

public static void main(String args[]) {
    char a[] = { 'a', 'b', '5', '?', 'A', ' ' };

    for (int i = 0; i < a.length; i++) {
        if (Character.isDigit(a[i]))
            System.out.println(a[i] + " is a digit.");
        if (Character.isLetter(a[i]))
            System.out.println(a[i] + " is a letter.");
        if (Character.isWhitespace(a[i]))
            System.out.println(a[i] + " is whitespace.");
        if (Character.isUpperCase(a[i]))
            System.out.println(a[i] + " is uppercase.");
        if (Character.isLowerCase(a[i]))
            System.out.println(a[i] + " is lowercase.");
    }/*from  w  w w  .jav a 2s .c  om*/
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader("in.txt"));
    BufferedWriter bw = new BufferedWriter(new FileWriter("out.txt"));
    int i;/*from  w  w  w  . jav a  2s  .c o m*/
    do {
        i = br.read();
        if (i != -1) {
            if (Character.isLowerCase((char) i))
                bw.write(Character.toUpperCase((char) i));
            else if (Character.isUpperCase((char) i))
                bw.write(Character.toLowerCase((char) i));
            else
                bw.write((char) i);
        }
    } while (i != -1);
    br.close();
    bw.close();
}

From source file:Main.java

public static void main(String[] args) throws java.io.IOException {
    char c = 'a';

    System.out.println("Character = " + (int) c);
    System.out.println("Defined = " + Character.isDefined(c));
    System.out.println("Digit = " + Character.isDigit(c));
    System.out.println("Ignorable = " + Character.isIdentifierIgnorable(c));
    System.out.println("ISO control = " + Character.isISOControl(c));
    System.out.println("Java identifier part = " + Character.isJavaIdentifierPart(c));
    System.out.println("Java identifier start = " + Character.isJavaIdentifierStart(c));
    System.out.println("Letter = " + Character.isLetter(c));
    System.out.println("Letter or digit = " + Character.isLetterOrDigit(c));
    System.out.println("Lowercase = " + Character.isLowerCase(c));
    System.out.println("Space = " + Character.isSpaceChar(c));
    System.out.println("Titlecase = " + Character.isTitleCase(c));
    System.out.println("Unicode identifier part = " + Character.isUnicodeIdentifierPart(c));
    System.out.println("Unicode identifier start = " + Character.isUnicodeIdentifierStart(c));
    System.out.println("Uppercase = " + Character.isUpperCase(c));
    System.out.println("White space = " + Character.isWhitespace(c));

    byte[] types = { Character.COMBINING_SPACING_MARK, Character.CONNECTOR_PUNCTUATION, Character.CONTROL,
            Character.CURRENCY_SYMBOL, Character.DASH_PUNCTUATION, Character.DECIMAL_DIGIT_NUMBER,
            Character.ENCLOSING_MARK, Character.END_PUNCTUATION, Character.FORMAT, Character.LETTER_NUMBER,
            Character.LINE_SEPARATOR, Character.LOWERCASE_LETTER, Character.MATH_SYMBOL,
            Character.MODIFIER_SYMBOL, Character.NON_SPACING_MARK, Character.OTHER_LETTER,
            Character.OTHER_NUMBER, Character.OTHER_PUNCTUATION, Character.OTHER_SYMBOL,
            Character.PARAGRAPH_SEPARATOR, Character.PRIVATE_USE, Character.SPACE_SEPARATOR,
            Character.START_PUNCTUATION, Character.SURROGATE, Character.TITLECASE_LETTER, Character.UNASSIGNED,
            Character.UPPERCASE_LETTER };

    String[] typeNames = { "Combining spacing mark", "Connector punctuation", "Control", "Currency symbol",
            "Dash punctuation", "Decimal digit number", "Enclosing mark", "End punctuation", "Format",
            "Letter number", "Line separator", "Lowercase letter", "Math symbol", "Modifier symbol",
            "Non spacing mark", "Other letter", "Other number", "Other punctuation", "Other symbol",
            "Paragraph separator", "Private use", "Space separator", "Start punctuation", "Surrogate",
            "Titlecase letter", "Unassigned", "Uppercase letter" };

    int type = Character.getType(c);

    for (int i = 0; i < types.length; i++)
        if (type == types[i]) {
            System.out.println("Type name = " + typeNames[i]);
            break;
        }//w  w  w  . j a v  a  2s.c om

    System.out.println("Unicode block = " + Character.UnicodeBlock.of(c));
}

From source file:Classify.java

public static void main(String[] args) throws java.io.IOException {
    char c = '\u0beb'; // Tamil digit.

    System.out.println("Character = " + (int) c);
    System.out.println("Defined = " + Character.isDefined(c));
    System.out.println("Digit = " + Character.isDigit(c));
    System.out.println("Ignorable = " + Character.isIdentifierIgnorable(c));
    System.out.println("ISO control = " + Character.isISOControl(c));
    System.out.println("Java identifier part = " + Character.isJavaIdentifierPart(c));
    System.out.println("Java identifier start = " + Character.isJavaIdentifierStart(c));
    System.out.println("Letter = " + Character.isLetter(c));
    System.out.println("Letter or digit = " + Character.isLetterOrDigit(c));
    System.out.println("Lowercase = " + Character.isLowerCase(c));
    System.out.println("Space = " + Character.isSpaceChar(c));
    System.out.println("Titlecase = " + Character.isTitleCase(c));
    System.out.println("Unicode identifier part = " + Character.isUnicodeIdentifierPart(c));
    System.out.println("Unicode identifier start = " + Character.isUnicodeIdentifierStart(c));
    System.out.println("Uppercase = " + Character.isUpperCase(c));
    System.out.println("White space = " + Character.isWhitespace(c));

    byte[] types = { Character.COMBINING_SPACING_MARK, Character.CONNECTOR_PUNCTUATION, Character.CONTROL,
            Character.CURRENCY_SYMBOL, Character.DASH_PUNCTUATION, Character.DECIMAL_DIGIT_NUMBER,
            Character.ENCLOSING_MARK, Character.END_PUNCTUATION, Character.FORMAT, Character.LETTER_NUMBER,
            Character.LINE_SEPARATOR, Character.LOWERCASE_LETTER, Character.MATH_SYMBOL,
            Character.MODIFIER_SYMBOL, Character.NON_SPACING_MARK, Character.OTHER_LETTER,
            Character.OTHER_NUMBER, Character.OTHER_PUNCTUATION, Character.OTHER_SYMBOL,
            Character.PARAGRAPH_SEPARATOR, Character.PRIVATE_USE, Character.SPACE_SEPARATOR,
            Character.START_PUNCTUATION, Character.SURROGATE, Character.TITLECASE_LETTER, Character.UNASSIGNED,
            Character.UPPERCASE_LETTER };

    String[] typeNames = { "Combining spacing mark", "Connector punctuation", "Control", "Currency symbol",
            "Dash punctuation", "Decimal digit number", "Enclosing mark", "End punctuation", "Format",
            "Letter number", "Line separator", "Lowercase letter", "Math symbol", "Modifier symbol",
            "Non spacing mark", "Other letter", "Other number", "Other punctuation", "Other symbol",
            "Paragraph separator", "Private use", "Space separator", "Start punctuation", "Surrogate",
            "Titlecase letter", "Unassigned", "Uppercase letter" };

    int type = Character.getType(c);

    for (int i = 0; i < types.length; i++)
        if (type == types[i]) {
            System.out.println("Type name = " + typeNames[i]);
            break;
        }//ww w .ja v  a 2 s.c  om

    System.out.println("Unicode block = " + Character.UnicodeBlock.of(c));
}