Java Examples - Make first letter of each word in Uppercase

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Problem Description:

How to make first character of each word in Uppercase?

Solution:

Following example demonstrates how to convert first letter of each word in a string into an uppercase letter Using toUpperCase(), appendTail() methods.

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

public class Main {
   public static void main(String[] args) {
      String str = "this is a java test";
      System.out.println(str);
      StringBuffer stringbf = new StringBuffer();
      Matcher m = Pattern.compile("([a-z])([a-z]*)",
      Pattern.CASE_INSENSITIVE).matcher(str);
      while (m.find()) {
         m.appendReplacement(stringbf, 
         m.group(1).toUpperCase() + m.group(2).toLowerCase());
      }
      System.out.println(m.appendTail(stringbf).toString());
   }
}

Result:

The above code sample will produce the following result.

this is a java test
This Is A Java Test


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