Indicates if the given character is alphabetical (a-z or A-Z). - Java java.lang

Java examples for java.lang:char

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Description

Indicates if the given character is alphabetical (a-z or A-Z).

Demo Code


//package com.java2s;

public class Main {
    /**/*from w  w  w.ja v a2s .co m*/
     * Indicates if the given character is alphabetical (a-z or A-Z).
     * 
     * @param character
     *            The character to test.
     * @return True if the given character is alphabetical (a-z or A-Z).
     */
    public static boolean isAlpha(int character) {
        return isUpperCase(character) || isLowerCase(character);
    }

    /**
     * Indicates if the given character is upper case (A-Z).
     * 
     * @param character
     *            The character to test.
     * @return True if the given character is upper case (A-Z).
     */
    public static boolean isUpperCase(int character) {
        return (character >= 'A') && (character <= 'Z');
    }

    /**
     * Indicates if the given character is lower case (a-z).
     * 
     * @param character
     *            The character to test.
     * @return True if the given character is lower case (a-z).
     */
    public static boolean isLowerCase(int character) {
        return (character >= 'a') && (character <= 'z');
    }
}

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