Example: Identify Character Types in Java

// Identify Character Types
public class Main {
    public static void main(String[] args) {
        char char1 = 'h';
        char char2 = 'P';
        char char3 = '7';
        char char4 = '$';
        char char5 = ' ';

        // Step 1: Check char1 ('h')
        System.out.println("Character '" + char1 + "':");
        System.out.println("  Is Letter: " + Character.isLetter(char1));
        System.out.println("  Is Digit: " + Character.isDigit(char1));
        System.out.println("  Is Uppercase: " + Character.isUpperCase(char1));
        System.out.println("  Is Lowercase: " + Character.isLowerCase(char1));
        System.out.println("  Is Whitespace: " + Character.isWhitespace(char1));
        System.out.println("  Is Special Character: " + !(Character.isLetterOrDigit(char1) || Character.isWhitespace(char1)));
        System.out.println("---");

        // Step 2: Check char4 ('$')
        System.out.println("Character '" + char4 + "':");
        System.out.println("  Is Letter: " + Character.isLetter(char4));
        System.out.println("  Is Digit: " + Character.isDigit(char4));
        System.out.println("  Is Uppercase: " + Character.isUpperCase(char4));
        System.out.println("  Is Lowercase: " + Character.isLowerCase(char4));
        System.out.println("  Is Whitespace: " + Character.isWhitespace(char4));
        System.out.println("  Is Special Character: " + !(Character.isLetterOrDigit(char4) || Character.isWhitespace(char4)));
        System.out.println("---");
    }
}