Question

Please help me do these two programs in JAVA

Program 1

Create a program that will create an ArrayList of Strings. Then input names until “quit” and use the enhanced for loop to print out the names.

Program 2

Using enum and array of objects

Use the enumerated type of: enum CarType { PORCHE, FERRARI, JAGUAR, UNKNOWN }

And place it in its own file. Then make a Car class that has the following:

            Make of CarType

            Year, string or integer

            Mileage of integer

Place in its own file like so:

            porche

            2010

            51119

            ferrari

            2014

            9182

            porche

            2015

            3987

            jaguar

            2011

            65123

Create a program that will have an array of four cars of Car class. Have it use a while loop to read in the information per car (use the enhanced switch to convert the string of the make into CarType – don’t forget about the phantom newline), allocate each Car object and put the information into that object. Then have a for loop go through the array, print the Car objects, and total the mileage. After the for loop ends, print the average mileage.

Sample run:

            Honest George’s Used Sports Cars

            Car 1 is a 2010 FERRARI with 51119 miles on it

            Car 2 is a 2014 JAGUAR with 9182 miles on it

            …

            Average mileage is 32352.8

Answer 1

Program 1:
// Java program to input Strings in ArrayList and display the names stored in the list

import java.util.Scanner;

import java.util.ArrayList;

public class NamesList {
public static void main(String[] args) {
ArrayList<String> names = new ArrayList<>(); // create an arraylist of string
       Scanner scan = new Scanner(System.in);
       String name;
       // input the name
       System.out.print("Enter name (quit to exit) : ");
       name = scan.nextLine();
       // loop to input strings till quit is entered
       while(!name.trim().equalsIgnoreCase("quit"))
       {
           names.add(name); // add the name to the list
           // input the next name
           System.out.print("Enter name (quit to exit) : ");
           name = scan.nextLine();
       }
         
       // enhanced for loop to print out the names stored in the list
       System.out.println("Names stored in the list: ");
       for(String s :names)
       {
           System.out.println(s);
       }
   }
}
  
//end of program

Output: