하위 표현식/메타 문자 "\t "는 탭 공백과 일치합니다.
예시 1
import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\\t"; Scanner sc = new Scanner(System.in); System.out.println("Enter a string: "); String input = sc.nextLine(); Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; while(m.find()) { count ++; } System.out.println("Number of tab spaces: "+count); } }
출력
Enter a string: This is a sentence with tab spaces Number of tab spaces: 6
예시 2
import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main( String args[] ) { String regex = "\\t"; Scanner sc = new Scanner(System.in); System.out.println("Enter a string: "); String input = sc.nextLine(); Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; String result = ""; while(m.find()) { result = m.replaceAll(" "); } System.out.println("Result: "+result); } }
출력
Enter a string: This is a sentence with tab spaces Result: This is a sentence with tab spaces