如何使用Java检测字符串中是否包含中文字符?
String chineseStr = "已下架" ;
if (isChineseString(chineseStr)) {
System.out.println("The string contains Chinese characters");
}else{
System.out.println("The string contains Chinese characters");
}
你能帮我解决这个问题吗?
如何使用Java检测字符串中是否包含中文字符?
String chineseStr = "已下架" ;
if (isChineseString(chineseStr)) {
System.out.println("The string contains Chinese characters");
}else{
System.out.println("The string contains Chinese characters");
}
你能帮我解决这个问题吗?
现在,Character.isIdeographic(int codepoint)
可以判断一个代码点是否是CJKV(中文、日文、韩文和越南文)表意文字。
更近的方法是使用 Character.UnicodeScript.HAN。
因此:
System.out.println(containsHanScript("xxx已下架xxx"));
public static boolean containsHanScript(String s) {
for (int i = 0; i < s.length(); ) {
int codepoint = s.codePointAt(i);
i += Character.charCount(codepoint);
if (Character.UnicodeScript.of(codepoint) == Character.UnicodeScript.HAN) {
return true;
}
}
return false;
}
或者在Java 8中:
public static boolean containsHanScript(String s) {
return s.codePoints().anyMatch(
codepoint ->
Character.UnicodeScript.of(codepoint) == Character.UnicodeScript.HAN);
}
if ("粽子".matches("[\\u4E00-\\u9FA5]+")) {
System.out.println("is Chinese");
}