Character类

文章目录

1.常用方法

static boolean isDigit​(char ch)Determines if the specified character is a digit.
static boolean isLetter​(char ch)Determines if the specified character is a letter.
static boolean isLowerCase​(char ch)Determines if the specified character is a lowercase character.
static boolean isUpperCase​(char ch)Determines if the specified character is an uppercase character.
posted @ 2021-04-23 22:43  木有呂朋友  阅读(39)  评论(0)    收藏  举报