The document provides a Java implementation for creating an array-based restaurant menu using classes and objects. It defines a 'restaurant' class that initializes a menu with four items using a constructor and includes mutator and accessor methods for the menu items. The code demonstrates how to encapsulate item details such as name, price, and vegetarian status.

1. How to create an array restaurant menu out of the main class using methods, mutators, accessors,
constructors and objects in Java.
Solution
/** * @fileName :Restaurant.java * @author * @since 10-02-2017 **/ package restaurant;
public class Restaurant { public static void main(String[] args) { //creating array of menu
Menu[] menu =new Menu[4]; //creating 4 menu object Menu item1 = new
Menu("Corn Soup",10.0f,true); Menu item2 = new Menu("bread",20.0f,true); Menu
item3 = new Menu("Chicken roll",80.0f,false); Menu item4 = new
Menu("fish",60.0f,true); //assigning the items to menu array menu[0]=item1;
menu[1]=item2; menu[2]=item3; menu[3]=item4; } } class Menu{ private
String itemName; private float price; private boolean veg; /** * this is default
constructor */ public Menu() { itemName=""; price=0.0f; veg=false; }
/** * * @param itemName * @param price * @param veg */ public
Menu(String itemName, float price, boolean veg) { this.itemName = itemName;
this.price = price; this.veg = veg; } public String getItemName() { return
itemName; } public void setItemName(String itemName) { this.itemName =
itemName; } public float getPrice() { return price; } public void setPrice(float
price) { this.price = price; } public boolean isVeg() { return veg; } public
void setVeg(boolean veg) { this.veg = veg; } }