To Char Array

package chapter2;

import java.util.Locale;

/**
 *
 * @author Amol
 */
public class ToCharArray {
    public static void main(String[] args) {
        String s1="Hello Form java";
        char charAt = s1.charAt(4);
        System.out.println("charAt = " + charAt);
        char[] toCharArray = s1.toCharArray();
        for (int i = 0; i < toCharArray.length; i++) {
            char c = toCharArray[i];
            System.out.println("c = " + c);

        }
       

        System.out.println("AmolShendre".replaceFirst("Amol", "Bhushan"));
        System.out.println("AmolShendre".replaceFirst("A", "B"));
        System.out.println("AmolShendre".toLowerCase());
        System.out.println("AmolShendre".toString());
        System.out.println("AmolShendre".toUpperCase(Locale.JAPANESE));

    }
}