Java Character.isTitleCase() 是否标题首字符
java中Character.isTitleCase()用于判断指定字符是否为标题首字符。
语法
public static boolean isTitleCase(char ch) //判断指定的字符是不是标题首字符 public static boolean isTitleCase(int codePoint) //判断指定的字符(Unicode码)是否为标题基字符
参数
ch //要测试的字符
codePoint //要测试的字符的Unicode码
返回值
如果字符是标题,则为“真”;否则为“假”
源码
public static boolean isTitleCase(char ch) { return isTitleCase((int)ch); } public static boolean isTitleCase(int codePoint) { return getType(codePoint) == Character.TITLECASE_LETTER; }
实例
public class CharacterisTitleCaseDemo { public static void main(String[] args) { String str="www.51gjie.com"; char[] buffer = str.toCharArray(); for (int i = 0; i < buffer.length; i++) { char ch = buffer[i]; if (Character.isUpperCase(ch)) { buffer[i] = Character.toLowerCase(ch); } else if (Character.isTitleCase(ch)) { buffer[i] = Character.toLowerCase(ch); } else if (Character.isLowerCase(ch)) { buffer[i] = Character.toUpperCase(ch); } } String str2 = new String(buffer); System.out.println(str2); } }
版权声明:本文为JAVASCHOOL原创文章,未经本站允许不得转载。