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This class matches lowercase letter characters, that is, a to z.
import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Posix_LowerExample { public static void main( String args[] ) { //Regular expression matches lowercase letters String regex = "^\\p{Lower}";+$"; //Get input data Scanner sc = new Scanner(System.in); System.out.println("Enter 5 input strings: "); String input[] = new String[5]; for(int i=0; i<5; i++) { input[i] = sc.nextLine(); } //Create a Pattern object Pattern p = Pattern.compile(regex); System.out.println("Strings with lower case letters: "); for(int i=0; i<5;i++) { //Create a Matcher object Matcher m = p.matcher(input[i]); if(m.matches()) { System.out.println(m.group()); } } } }
Output Result
Enter 5 input strings: Raju RAMU rahman radha SUnDar* Strings with lower case letters: rahman Radha
import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main(String args[]) { //Read a string from the user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "\\p{Lower}"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); //Retrieve matcher object Matcher matcher = pattern.matcher(input); int count = 0; while(matcher.find()) { count++; } System.out.println("Number of lower case letters in given string:");+count); } }
Enter a string Hello How Are You Number of lower case letters in given string: 10
Enter a string WELCOME TO TUTORILASPOINT Number of lower case letters in given string: 0