Question

Glenn is selling food in restaurant. She is using POS system. So if she wants to store the food sets in array, how to use search function to search the food sets from the array by using(( JAVA )) and display it ?

I want a sample like this, thank you
For example:

Enter the set you want to search: SET1

SET1
$10
Cheese Burger
Coke
fries
---------------------------------------------------------

Your Entire food menu :
SET1
$10
Cheese Burger
Coke
fries

SET2
$14
spicy chicken
juice
potato

SET3
Texas Chicken
Juice
Potato Bowl

...and etcetera.

Answer 1

Here is the answer for your question in Java Programming Language.

You can use a class (ex: FoodStorage) to have all the details of a food set in one place and you can create array of objects of the class as array of foodsets and store data in the array.

I have used the above given approach to store and search a food set by using the food set name.

Kindly upvote if you find the answer helpful. Please comment if you have any doubts. Thank you.

CODE :

FoodStorage.java

public class FoodStorage {    //Required variables private String setName; private double cost; private String mainCourse; private String softDrink; private String starters;    //Default constructor FoodStorage(){ }    //Parameterized constructor public FoodStorage(String setName, double cost, String mainCourse, String softDrink, String starters) { this.setName = setName; this.cost = cost; this.mainCourse = mainCourse; this.softDrink = softDrink; this.starters = starters; }    //Getters public String getSetName() { return setName; } public double getCost() { return cost; } public String getMainCourse() { return mainCourse; } public String getSoftDrink() { return softDrink; } public String getStarters() { return starters; }    //toString() to display contents of class object @Override public String toString() { return setName + "\n$" + cost + "\n" + mainCourse + "\n" + softDrink + "\n" + starters; }    }

TestFoodStorage.java (This program is used to search a food set)

import java.util.Scanner; public class TestFoodStorage {    public static void main(String[] args){    //String to store setname given by user String setName;    //Scanner object to read input from user Scanner s = new Scanner(System.in);    //Create array for FoodStorage objects FoodStorage[] foodsets = new FoodStorage[5];    //Store data in the array of FoodStorage objects foodsets[0] = new FoodStorage("SET1",10,"Cheese Burger","Coke","Fries"); foodsets[1] = new FoodStorage("SET2",14,"Spicy Chicken","Juice","Potato"); foodsets[2] = new FoodStorage("SET3",10,"Veg Pizza","Lemon Juice","Manchurian"); foodsets[3] = new FoodStorage("SET4",10,"Fried Rice","Pepsi","Aloo fries"); foodsets[4] = new FoodStorage("SET5",10,"Veg Pulao","Orange Juice","Cake");    //Display entire food menu System.out.println("--------------------------"); System.out.println("Your entire food menu: "); System.out.println("--------------------------"); //Loops thorugh every food set in foodsets array for(FoodStorage foodset : foodsets){ //Prints the food set details System.out.println(foodset); System.out.println(); } //Read the set name from the user in order to do a search System.out.println("--------------------------"); System.out.print("Enter the set you want to search: "); setName = s.nextLine();    //Call searchFoodSet method with setName given by user and foodsets array as parameters searchFoodSet(setName,foodsets);    } //Implementation of searchFoodSet public static void searchFoodSet(String setName,FoodStorage[] foodsets){    //Create a flag and set it initially to false boolean exists = false; //Loop throug every food set in the foodsets array for(FoodStorage foodset : foodsets){ //If set name of any food set matches given food set name if(foodset.getSetName().compareToIgnoreCase(setName) == 0){ //Set the falg to true exists = true; //Print food set details System.out.println("--------------------------"); System.out.println("Food Set Details"); System.out.println("--------------------------"); System.out.println(foodset); } } //If the flag is false dsplay appropriate message if(!exists){ System.out.println("--------------------------"); System.out.println("Food set " + setName + " has not been found in the food storage."); System.out.println("--------------------------"); } } }

SCREENSHOTS :

Please see the screenshots of the code below for the indentations of the code.

FoodStorage.java

TestFoodStorage.java

OUTPUT :

If a set name which is not there in food storage is given,

Any doubts regarding this can be explained with pleasure :)