How can I ask for more inputs from the user in Java without undoing the work I\'

Question

How can I ask for more inputs from the user in Java without undoing the work I've already done? I'm currently working on a project, but I'm having a little difficulty getting the results to be exactly as I would like. What I would like to do is:

- introduce myself (which I've done)

- ask the user for their name (not done)

- display a list of puppies available (not done)

- ask the user to pick a puppy and display it (not done)

- display a list of quotes about puppies (done)

- ask the user to pick a quote and display it (done)

- display a random quote based on words I've put in an array (done)

- finally display something like "Welcome, (their name)! I hope you like your new puppy (puppy name). I think you'll be an excellent fit." (not done)

I need to make sure I keep this in the four classes/files I have created, but I'm so new to this that I have no idea where to go from here to do what I would like. Here is what I have so far:

VirtualWorld.java

public class VirtualWorld {

public static void main(String[] args)

{

MyClone myclone=new MyClone();

myclone.setFirstName("Name");

myclone.setLastName("Here");

myclone.introduction();
  
Puppy myDog=new Puppy(2,"Dog","Tom");
  
myDog.setPuppyTag(1);
  
myDog.setPuppyType("Dog");

myDog.setPuppyName("Stuart");
System.out.println("PUPPY ID:"+myDog.getPuppyTag());

System.out.println("PUPPY NAME:"+ myDog.getPuppyName());

MyShoutBox bx=new MyShoutBox();

System.out.println("The saying is: "

+ bx.shoutOutCannedMessage());

System.out.println("Your random message is: "

+ bx.shoutOutRandomMessage());

}

}

MyClone.java

public class MyClone {

private String firstName;

private String lastName;

// our first and last names will be set to private Strings

// we will need to access them through additional means

public String getFirstName()

{ //how we get firstName

return firstName; // returns firstName

}

public String getLastName()

{ //how we get lastName

return lastName; //returns lastName to system

}

public void setFirstName(String newFirstName) { //how we will set first name

firstName = newFirstName;

}

public void setLastName(String newLastName)

{ //how we will set last name

lastName = newLastName;

}

public void introduction() { // our introduction

System.out.println("Hello there! My name is "+firstName+" "+lastName+", and this is my home.");

System.out.println("Pull up a seat, and pick a puppy to be your new best friend.");

}

}

MyShoutBox.java

import java.util.Iterator;

import java.util.LinkedHashMap;

import java.util.Map;

import java.util.Map.Entry;

import java.util.Random;

import java.util.Scanner;

public class MyShoutBox

{

private static Map<Integer, String> getCannedMessagesMap() {

//introduces the hm of our set phrases for user selection

Map<Integer, String> cannedMessages = new LinkedHashMap<>();

cannedMessages.put(1, "Lately, my dog's the only one around that listens to my problems.");

cannedMessages.put(2,

"Who let the dogs out?");

cannedMessages.put(3, "Dogs are man's best friends.");

cannedMessages.put(4,

"No one will love you are strongly or purely as a dog.");

cannedMessages.put(5, "Love is a puppy licking your face, even after you left him alone all day.");

cannedMessages.put(6, "A puppy is just a part of your life; you are their entire life.");

cannedMessages.put(7,

"Knick-knack, paddy whack, give the dog a bone.");

cannedMessages.put(8,

"Bow-wow.");

cannedMessages.put(9, "What is it, Lassie? Is little Timmy stuck in the well?");

cannedMessages.put(10, "I didn't cry when Old Yeller died, at least not in front of my friends.");

return cannedMessages;

}

public static String shoutOutCannedMessage() {

int id;

String message = "";

// this allows for the iteration over our collection

// allows us to access each element

Iterator<Entry<Integer, String>> msgIterator = getCannedMessagesMap().entrySet().iterator(); // utilize integer to display string

while (msgIterator.hasNext())

{ // as long as there is another in the collection

//this will continue

Map.Entry msgPair = (Map.Entry) msgIterator.next();

System.out.println("[" + msgPair.getKey() + "] "

+ msgPair.getValue());

//this puts [] around each of our numbers

}// will then end

try

{ //setting up a try/catch to handle exceptions

System.out.print("Please select the number of your favorite message: ");

// prints out the prompt for input to select

Scanner sc = new Scanner(System.in); //input for selection

System.out.println(" ");

id = sc.nextInt(); //input will be an Int

message = getCannedMessagesMap().get(id);

//this directly relates our choice to our above sentences

}

catch (Exception e)

{

// if we deviate from the expected input, we get this

System.out.println("You missed the mark! Oops! Your error is: " + e.getMessage());

}

return message; // returns the selection

}

public static String shoutOutRandomMessage() {

int i;

// This sets our words for potential random selection

String[] subject = { "You", "Someone", "A relative", "A friend", "A stranger" };

String[] verb = { " is", " was", " will be", " might be", " won't be", " can't be" };

String[] adjective = { " rich", " successful", " educated", " friendly", " handsome" };

String[] object = { " with some help", " with a wife", " with his son", " with a friend", " with money" };

String[] adverb = { " in the end. ", " today. ", " someday. ",

" in some years. ", " tomorrow." };

Random k = new Random(); // this initializes Random

int chosenMessage = k.nextInt(subject.length);

String randomMessage = "";

for (i = 1; i <= 1; i++)

// our for loops which will allow for us to iterate

//through the potential words rather than staying stagnant

{

//sets randomMessage so it will iterate through the length of each list of words

// random will allow for this selection to be random

randomMessage = subject[k.nextInt(subject.length)]

+ verb[k.nextInt(verb.length)]

+ adjective[k.nextInt(adjective.length)]

+ object[k.nextInt(object.length)]

+ adverb[k.nextInt(adverb.length)];

}

return randomMessage;

}

public static void main(String[] args) {

System.out.println("Your selected doggy saying is: "

+ shoutOutCannedMessage()); // displays our selection

System.out.println("Your random message is: "

+ shoutOutRandomMessage()); // displays each word at random

//one from each list

}

}

Puppy.java

public class Puppy

{

private int puppyTag; //sets puppyTag to private int value

private String puppyType; // puppyType will be private String

private String puppyName; // puppyName will be private string

public Puppy() {

this.puppyTag = 1; //sets puppyTag of first dog

this.puppyType= "Dachshund"; //sets puppyType of first dog

this.puppyName = "Slinky"; //sets puppyName of first dog

}

public Puppy(int puppyTag, String puppyName, String puppyType)

{

//^ sets type and order when utilizing Puppy()

super(); // constructor allowing us to take arguments from DogTypes subclass

this.puppyTag = puppyTag;

this.puppyType = puppyType;

this.puppyName = puppyName;

}

public int getPuppyTag() //getPuppyTag will be a public int

{

return puppyTag; //returns puppyTag in int format

}

public void setPuppyTag(int puppyTag) //sets puppyTag to int

{

this.puppyTag = puppyTag;

}

public String getPuppyType() //gets puppyType

{

return puppyType;

}

public void setPuppyType(String puppyType) //sets puppyType to String type

{

this.puppyType = puppyType;

}

public String getPuppyName() //gets puppyName variable

{

return puppyName;

}

public void setPuppyName(String puppyName) //setter for String puppyName

{

this.puppyName = puppyName;

}

public void displayPuppyInfo()

{

System.out.println("Puppy Tag#: " + puppyTag);

System.out.println("Puppy Name: " + puppyName);

}

}

I really appreciate any help I can get with this! Thank you!

Explanation / Answer

1. Asking the user for their name:

System.out.println("Enter your name: ");
Scanner scan = new Scanner(System.in);
String username = scan.nextLine();

2. List of puppies:

for ( int i = 0; i < puppies.length; i++)
{
System.out.println(puppies[i]);
]

3. Ask the user to pick a puppy:

System.out.println("Select puppy number: ");
Scanner scan2 = new Scanner(System.in);
int index = scan.nextInt();
System.out.println("The puppy selected by the user is: ");
System.out.println(puppies[i]);

4. System.out.println("Welcome, (their name)! I hope you like your new puppy (puppy name). I think you'll be an excellent fit");

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