Java Program to Capitalize the first character of each word in a String

In this program, we will see how to convert first letter of each word in a String to uppercase. For this purpose here we will use StringTokenizer class to break a given String into tokens and also we will use Java substring(int start_index, int end_index) method. Substring methods returns string from including starting index and excluding ending index.

Example:

Input: "hello how are you?"
Ouput: "Hello How Are You? "

Java Code:

import java.util.StringTokenizer;

public class Java {
    public static void main(String[] args) {
        String s = ("hello how are you?");
        StringTokenizer st = new StringTokenizer(s, " ");
        while (st.hasMoreTokens()) {
            String name = st.nextToken();
            System.out.print(name.substring(0, 1).toUpperCase() + name.substring(1) + " ");
        }

    }
}

Output:

Hello How Are You?

Also Read:

Reverse Words in a String.