CHARACTER

* CHARACTER

package Character;

public class TestCharacter
{

    public static void main(String[] args)
    {
        System.out.println("(isLetter() Method)");

        /*
         * Syntax :
         * boolean isLeter(char ch)
         * Parameters :
         * ch - a primitive character
         * Returns :
         * returns true is a alphabet, otherwise return false
         */

        System.out.println(Character.isLetter('R'));
        System.out.println(Character.isLetter('9'));
        System.out.println(Character.isLetter('H'));
        System.out.println(Character.isLetter('0'));


        System.out.println("\n(isDigit() Method)");

        /*
         * Syntax :
         * boolean isDigit(char ch)
         * Parameters :
         * ch - a primitive character
         * Returns :
         * returns true if ch is a digit, otherwise return false
         */

        // print false as A is character
        System.out.println(Character.isDigit('A'));
        System.out.println(Character.isDigit('8'));
        System.out.println(Character.isDigit('M'));
        System.out.println(Character.isDigit('7'));

        System.out.println("\n(isWhitespace() Method)");

        /*
         * boolean isWhitespace(char ch)
         * Parameters :
         * ch - a primitive character
         * Returns :
         * returns true if ch is a whitespace.
         * otherwise return false
         */

        System.out.println(Character.isWhitespace('A'));
        System.out.println(Character.isWhitespace(' '));
        System.out.println(Character.isWhitespace('\n'));
        System.out.println(Character.isWhitespace('\t'));

        // ASCII value tab
        System.out.println(Character.isWhitespace(9));
        System.out.println(Character.isWhitespace('9'));

        System.out.println("\n(isUpperCase() Method)");

        /*
         * It determines whether the specifed char value(ch) is uppercase or not.
         * Syntax :
         * boolean isUpperCase(char ch)
         */

        System.out.println(Character.isUpperCase('D'));
        System.out.println(Character.isUpperCase('d'));
        System.out.println(Character.isUpperCase(95));
        System.out.println(Character.isUpperCase(24));

        System.out.println("\n(isLowerCase() Method)");

        /*
         * It determines whether the specifed char value(ch) is lowercase or not.
         * Syntax :
         * boolean isLowerCase(char ch)
         */

        System.out.println(Character.isLowSurrogate('A'));
        System.out.println(Character.isLowerCase('a'));
        System.out.println(Character.isLowerCase(14));

        System.out.println("\n(toUpperCase() Method)");

        /*
         * Syntax :
         * char toUpperCase(char ch)
         * Parameters :
         * ch - a primitive character
         * Returns :
         * returns the uppercase formof the specified char value.
         */

        System.out.println(Character.toUpperCase('r'));
        System.out.println(Character.toUpperCase('a'));
        System.out.println(Character.toUpperCase('h'));
        System.out.println(Character.toUpperCase('m'));
        System.out.println(Character.toUpperCase('m'));
        System.out.println(Character.toUpperCase('a'));
        System.out.println(Character.toUpperCase('d'));

        System.out.println("\n(toLowerCase() Method)");

        /*
         * Syntax :
         * char toLowerCase(char ch)
         * Parameters :
         * ch - a primitive character
         * Returns :
         * returns the lowercase form of the specified char value.
         */

        System.out.println(Character.toLowerCase('R'));
        System.out.println(Character.toLowerCase('A'));
        System.out.println(Character.toLowerCase('H'));
        System.out.println(Character.toLowerCase('M'));
        System.out.println(Character.toLowerCase('A'));
        System.out.println(Character.toLowerCase('D'));


        System.out.println("\n(toString() Method)");

        /*
         * String toString(char ch)
         * Parameters :
         * ch - a primitive character
         * returns :
         * returns a string object.
         */

        System.out.println(Character.toString('J'));
        System.out.println(Character.toString('U'));
        System.out.println(Character.toString('N'));
        System.out.println(Character.toString('I'));

    }

}