Main.java

public class Main {
    public static void main(String[] args) {
        // Create files
        Component file1 = new Leaf("file1.txt", 100);
        Component file2 = new Leaf("file2.txt", 50);

        // Create subdirectory
        Composite subDirectory = new Composite("Subdirectory");
        Component file3 = new Leaf("file3.txt", 75);
        subDirectory.addComponent(file3);

        // Create root directory
        Composite rootDirectory = new Composite("Root");
        rootDirectory.addComponent(file1);
        rootDirectory.addComponent(file2);
        rootDirectory.addComponent(subDirectory);

        // Display file system information
        rootDirectory.displayInfo();

        // Calculate total size
        int totalSize = rootDirectory.getSize();
        System.out.println("Total size: " + totalSize + " bytes");

    }
}