Question

Write a program to display the following menu and accept a choice number. If an invalid choice, appropriate error message must be displayed. Otherwise the choice number entered must be displayed.
MENU
(1)- create a data file
(2)- display a data file
(3)- edit a data file
(4)- exit
Choice:

Answer 1

Program to display the following menu and   accept a choice number which is mention in the question is given below

Output:

(1)- create a data file

(2)- display a data file:

(3)- edit a data file:

(4)- exit

Choice:

2

Your choice is 2

Explanation:

As in the question their is no such language of programming is given so we have used Java Programming language to create a program .

Program:

import java.util.*;  // import package

import java.lang.*;  // import package

import java.io.*;  // import package

class Main  // main class

{

// main method

public static void main (String[] args) throws java.lang.Exception  

{

   try // try block

{

Scanner scr=new Scanner(System.in);  //creating the object of scanner class

      int choice;  // variable declaration

      System.out.println("(1)- create a data file:");

      System.out.println("(2)- display a data file:");

      System.out.println("(3)- edit a data file:");

      System.out.println("(4)- exit");

      System.out.println("Choice:");  

      choice=scr.nextInt();

      if(choice>4 || choice<1)

      System.out.println("Wrong Choice.");

       

      else{

          System.out.println("Your choice is "+ choice);

      }

       

   }catch(Exception ex){

       return;}

}

}

Following are the description of the program :

Create a scanner class object to read the input from user. Print the menu of choices and then read the user's choice with scanner object. Then check whether user has entered a valid choice or not. If choice is invalid (choice<1|| choice>4) then print "Wrong Choice" message, Otherwise print the user's choice.

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