menucomponent.java

来自「Head first design pattern这本经典书的 源码」· Java 代码 · 共 36 行

package headfirst.composite.menuiterator;

import java.util.*;

public abstract class MenuComponent {
   
	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();
	}
	public String getDescription() {
		throw new UnsupportedOperationException();
	}
	public double getPrice() {
		throw new UnsupportedOperationException();
	}
	public boolean isVegetarian() {
		throw new UnsupportedOperationException();
	}

	public abstract Iterator createIterator();
 
	public void print() {
		throw new UnsupportedOperationException();
	}
}