MenuComponent.java

package CompositePattern;

public abstract class MenuComponent {
    
    // Composite methods used to add, remove, and get child components
    public void add(MenuComponent menuComponent) {
        throw new UnsupportedOperationException();
    }

    public void remove(MenuComponent menuComponent) {
        throw new UnsupportedOperationException();
    }

    public MenuComponent getChild(int i) {
        throw new UnsupportedOperationException();
    }

    public String getName() {
        throw new UnsupportedOperationException();
    }

    // Operation methods used by the menuItems
    public String getDescription() {
        throw new UnsupportedOperationException();
    }

    public double getPrice() {
        throw new UnsupportedOperationException();
    }

    public boolean isVegetarian() {
        throw new UnsupportedOperationException();
    }

    // print is an operation method used by both Menu and MenuItem
    public void print() {
        throw new UnsupportedOperationException();
    }
}