Java: Find the sequences of one upper case letter followed by lower case letters

Java Regular Expression: Exercise-4 with Solution

Write a Java program to find the sequence of one upper case letter followed by lower case letters.

Sample Solution:

Java Code:

import java.util.Scanner;
public class Main {
   public static void main(String[] args) {
	  
	    System.out.println(validate("Java"));
	    System.out.println(validate("java"));
	    System.out.println(validate("javA"));
	    System.out.println(validate("JAVa"));
      System.out.println(validate("Ja"));
      System.out.println(validate("aJ"));		
        }
   public static String validate(String text) {
	   if (text.matches("[A-Z][a-z]+$"))
                return "Found a match!";
       else
                return "Not matched!";
   }
}

Sample Output:

Found a match!
Not matched!
Not matched!
Not matched!
Found a match!
Not matched!

Pictorial Presentation:

Flowchart :

Java Code Editor:

Contribute your code and comments through Disqus.

Previous: Find sequences of lowercase letters joined with a underscore.
Next: Find a string that has a p followed by anything, ending in q.