java使用Character类，javacharacter类,Character类提供

java使用Character类，javacharacter类,Character类提供

Character类提供了一系列的静态方法判断字符的类型，字符的大小写等

如下代码：

package cn.outofmemory.examples;public class CharacterDemo {   public static void main(String args[]) {     char c = 'a';     boolean lowerCase = Character.isLowerCase(c);     boolean upperCase = Character.isUpperCase(c);     boolean letterOrDigit = Character.isLetter(c);     System.out.println("Is c lowercase? " + lowerCase);     System.out.println("Is c uppercase? " + upperCase);     System.out.println("Is c a letter? " + letterOrDigit);   }}