String Formatter

public class Main {
    public static void main(String[] args) {
        System.out.println("1");
        printInformation("Hello, World");
        System.out.println("2");
        printInformation("");
        System.out.println("3");
        printInformation();
        System.out.println("4");
        printInformation("\t  \n");
    }

    public static void printInformation() {
        System.out.println("Overload method: String is empty\n");
    }

    public static void printInformation(String string) {
        int length = string.length();

        if (string.isEmpty()) {
            System.out.println("String is empty\n");
        }

        if (string.isBlank()) {
            System.out.println("String is blank\n");
        }

        if (length > 0) {
            System.out.printf("Length = %d %n", length);
            System.out.printf("First char = %c %n", string.charAt(0));
            System.out.printf("Last char = %c %n", string.charAt(length - 1));

            for (int x = 0; x < length; x++) {
                System.out.printf("Position: %d :  %c %n", x, string.charAt(x));
            }

            String helloWorld = "Hello, World";
            System.out.printf("index of , is: %d %n", helloWorld.indexOf(','));
            System.out.printf("index of World is: %d %n", helloWorld.indexOf("World"));
            System.out.printf("index of l is: %d %n", helloWorld.indexOf("l"));
            System.out.printf("index of l is: %d %n", helloWorld.lastIndexOf("l"));
            System.out.printf("index of l is: %d %n", helloWorld.indexOf("l", 3));
            System.out.printf("index of l is: %d %n", helloWorld.lastIndexOf("l", 8));

            //String compare values
            String helloWorldLower = helloWorld.toLowerCase();
            if (helloWorld.equals(helloWorldLower)) {
                System.out.println("Values match exactly");
            }

            if (helloWorld.equalsIgnoreCase(helloWorldLower)) {
                System.out.println("Values match ignoring case");
            }

            if (helloWorld.startsWith("Hello")){
                System.out.println("Starts with Hello");
            }

            if (helloWorld.endsWith("World")) {
                System.out.println("Ends with World");
            }

            if (helloWorld.contains("World")) {
                System.out.println("Contains World");
            }


        }
    }
}