此类\ p {InGreek}与希腊字符匹配。
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
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