Java Character.isTitleCase() 方法

 Java Character字符常用方法

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，返回true；否则返回false

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.yxjc123.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);
    }
}