Posix字符类\ p {InGreek} Java正则表达式
此类\p{InGreek}与希腊字符匹配。
示例
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example1 {
public static void main(String args[]) {
//从用户读取字符串
System.out.println("Enter a string");
Scanner sc = new Scanner(System.in);
String input = sc.nextLine();
//正则表达式
String regex = "\\p{InGreek}";
//Compiling the 正则表达式
Pattern pattern = Pattern.compile(regex);
//检索匹配器对象
Matcher matcher = pattern.matcher(input);
int count = 0;
while(matcher.find()) {
count++;
}
System.out.println("Number of Greek characters: "+count);
}
}输出结果
Enter a string sample text αγ ηθ ξψ Number of Greek characters: 6
例
import java.util.Scanner;
public class Example {
public static void main(String args[]) {
//从用户读取字符串
System.out.println("Enter a string");
Scanner sc = new Scanner(System.in);
String input = sc.nextLine();
//正则表达式
String regex = "^.+\\p{InGreek}.+";
boolean result = input.matches(regex);
if(result) {
System.out.println("Given string contains Greek characters");
} else {
System.out.println("Given string doesn’t contain Greek characters ");
}
}
}输出结果
Enter a string sample text αγ Given string contains Greek characters
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