How to determines if a string starts with uppercase letter

The follwoing example, will demonstrates, how find string wich starts with Uppercase letter using regular expressions

package com.onlinecodegeek.java;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author tponnam
 *
 */
public class FindFirstUpperCaseLetterInStringEx {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		String content = "welcome to Awesome Java world and Hello Scout";
		findUppercaseFirstLetterInString(content);
	}
	
	private static void findUppercaseFirstLetterInString(String content) {
		Matcher m = Pattern
				.compile("([a-z])([a-z]*)", Pattern.CASE_INSENSITIVE).matcher(
						content);
		System.out.println("Given input string : " + content);
		while (m.find()) {
			if (m.group(1).equals(m.group(1).toUpperCase())) {
				System.out.println("First Letter Upper case match found :"
						+ m.group());
			}
		}
	}
}

Output

Given input string : welcome to Awesome Java world and Hello Scout First Letter Upper case match found :Awesome First Letter Upper case match found :Java First Letter Upper case match found :Hello First Letter Upper case match found :Scout

 

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