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包装类Character的常用方法

2012-10-07 01:12:55| 分类： JAVA学习笔记 | 标签： |举报 |字号大中小订阅

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基本数据类型	包装类
isDigit()	确定字符是否为0至9之间的数字
isLetter()	确定字符是否为字母
isLowerCase()	确定字符是否为小写形式
isUpperCase()	确定字符是否为大写形式

public class Test {

public static void main(String[] args){

int count;

char[] values = {'a','b','5','A'};

for(count = 0;count<values.length;count++){

if(Character.isDigit(values[count])){

System.out.println("是数字");

}

if(Character.isUpperCase(values[count])){

System.out.println("是大写字母");

}

if(Character.isLowerCase(values[count])){

System.out.println("是小写字母");

}

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