Program must be written in Java: Write a program that performs the following tas

Question

Program must be written in Java: Write a program that performs the following tasks: Repeatedly prompts the user for a name which will be a String. Store the name in an appropriate data structure to create a list of names. Develop a way to exit the repeated prompt. Ask the user the user for a name to search for in the data structure. Return the position of where the name is in the list and print the position to the user. The previous 2 tasks should occur in a menu that will let the user either add more names or search for names.

Explanation / Answer

NameSearch.java

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class NameSearch {

   /**
   * @param args
   */
   public static void main(String[] args) {
       // TODO Auto-generated method stub
   Scanner in = new Scanner(System.in);
   List<String> list = new ArrayList<String>();
       while(true){
           System.out.println("Choose your choice : 1) Add Name 2) Search Name 3) Print Names 4) Quit");
           int choice = in.nextInt();
           if(choice == 1){
           addName(in, list);
           }
           else if(choice == 2){
           searchName(in, list);
           }
           else if(choice == 3){
           printNames(list);
           }
           else if(choice == 4){
           break;
           }
       }
   }
   public static void addName(Scanner in, List<String> list){
       System.out.println("Enter Name :");
       String name = in.next();
       list.add(name);
       System.out.println("Given Name added successfully");
   }
   public static void searchName(Scanner in, List<String> list){
       System.out.println("Enter Name for Search:");
       String name = in.next();
       int index = list.indexOf(name);
       if(index != -1)
       System.out.println("Given name found at index "+index);
       else
       System.out.println("Given name not found");
   }
   public static void printNames(List<String> list){
       if(list != null && list.size() > 0){
       for(int i=0; i<list.size(); i++){
           System.out.println(list.get(i));
       }
       }
       else
           System.out.println("No records available");
   }
}

Output:

Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
1
Enter Name :
Suresh
Given Name added successfully
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
3
Suresh
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
1
Enter Name :
Sekhar
Given Name added successfully
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
2
Enter Name for Search:
Naresh
Given name not found
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
3
Suresh
Sekhar
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
1
Enter Name :
Naresh
Given Name added successfully
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
2
Enter Name for Search:
Sekhar
Given name found at index 1
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
3
Suresh
Sekhar
Naresh
Choose your choice :
1) Add Name
2) Search Name
3) Print Names
4) Quit
4

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