Java:如何检查字符是否属于特定的unicode块？

import java.util.regex.Pattern;

public class UnicodeBlockExample {
    public static void main(String[] args) {
        char ch = '你';
        if (UnicodeBlock.of(ch) == UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS) {
            System.out.println("字符属于CJK_UNIFIED_IDEOGRAPHS块");
        } else {
            System.out.println("字符不属于CJK_UNIFIED_IDEOGRAPHS块");
        }
    }
}

import java.util.regex.Pattern;

public class UnicodeBlockExample {
    public static void main(String[] args) {
        char ch = '你';
        Pattern pattern = Pattern.compile("\\p{InCJK Unified Ideographs}");
        if (pattern.matcher(String.valueOf(ch)).matches()) {
            System.out.println("字符属于CJK_UNIFIED_IDEOGRAPHS块");
        } else {
            System.out.println("字符不属于CJK_UNIFIED_IDEOGRAPHS块");
        }
    }
}