枫叶像思念

摘要： import java.util.ArrayList; public class Pizza { String name; String dough; String sauce; ArrayList toppings = new ArrayList(); void prepare() { Syste 阅读全文

摘要： public class Pizza { public void prepare() { System.out.println("preparing..."); } public void bake() { System.out.println("baking..."); } public void 阅读全文