convert lowercase to uppercase first character in word java code example

Example 1: how to make a char uppercase in java

char q = Character.toUpperCase('d');

Example 2: java capitalize first letter of each word

import org.apache.commons.text.WordUtils;

public class WordUtilsCapitalizeFullyExample {
    public static void main(String[] args) {
        String result1 = WordUtils.capitalizeFully("how to CAPITALIZE first letter words");
        System.out.println(result1);
    }
}