CODEWITHSUNDEEP
javaarraysfor-loop
Brothah Heffay
Brothah Heffay

Reputation: 25

How do I access object data, where the objects are in an array using a for loop?

I'm creating the game of monopoly, star wars edition for fun, not for homework :) Anyways I'm prompting the user to input how many 'human' players they want out of 4 players in total. Then I use a for loop to create that amount of human players. That seems to work however when I use a getter method to test and see if the players survive outside the loop, it says "cannot find symbol - variable player." This was my first attempt at using arrays as well. So If someone could assist me on accessing and using those created unique player objects, that would be great. 

    import java.util.Scanner;
import java.util.Random;
public class Launcher
{
    PairOfDice myDice = new PairOfDice();
    private Planet myTest;
    private PlanetInfo myPlanetInfo;
    public static void main(String[] args)
    {

        Scanner scan = new Scanner(System.in);
        System.out.println("You are in the presence of the Naked Jeff's code. Please, be humbled.");
        System.out.println();
        System.out.println("There will be 4 players, how many do you wish to be human? 0><4");

        ////////////////////////////////////////////////////////// HOW TO CREATE MULTIPLE OBJECTS BASED ON LOOP
        int numbHuman = scan.nextInt();
        while (numbHuman < 1 || numbHuman > 4)
        {
            System.out.println("Invalid entry, try again.");
            numbHuman = scan.nextInt();
        }
        Player[] arr = new Player[numbHuman];
        String[] userName = new String[numbHuman];
        for(int i = 0; i < arr.length; i++)
        {
            System.out.println("Player " + (i + 1) + ", Please enter your first name:");
            userName[i] = scan.next();
            arr[i] = new Player(userName[i]);
        }
        System.out.println("player " + (4) + "'s name is" + [COLOR="#FF0000"]player[/COLOR][3].getName());
        /////////////////////////////////////////////////////////
    }
}


//and here's my Player class.

public class Player
{
    PairOfDice myDice = new PairOfDice();
    private int startingBal;
    private int currentBal;
    private String myName;
    private int rollOne;
    private int rollTwo;
    private int doublesCount;
    private boolean roll;

    public Player(String userName)
    {
        myName = userName;
        System.out.println("Player's name is: " + myName);
    }
    public String getName(){return myName;}
    public int playerGo()
    {
        myDice.rollDice();
        rollOne = myDice.getResult1();
        rollTwo = myDice.getResult2();
        while(rollOne == rollTwo && roll == true)
        {
            doublesCount++;
            roll = false;
            //WORKING ON THIS//
        }
        return 0;
    }
    public boolean getGoAgain(boolean roll)
    {
        return roll;
    }
    public int newBalance()
    {

        return 1;
    }
}

Upvotes: 0

Views: 71

Answers (2)

Suhail
Suhail

Reputation: 85

Replace 

System.out.println("player " + (4) + "'s name is" + [COLOR="#FF0000"]player[/COLOR][3].getName());

with 

System.out.println("player " +"'s name is" +arr[3].getName());

You have declared array of type Player and the name of that array is arr. So while accessing the array,you need to give the name of array with the index, so if you are accessing the third player and your index starts with 1, then code will be :

 arr[3].getName();

Upvotes: 0

Thomas
Thomas

Reputation: 88737

Instead of calling player[3].getName() you'd want to call arr[3].getName().

"Carefully read your code you must. Do use arr or do not. There is no player". ;)

Edit:

Btw, even arr[3].getName() might result in an error if there are less than 4 players. Use arr[numbHuman-1].getName() instead and be aware that this is not necessarily the 4th player.

So your line might instead be this:

System.out.println("player " + numbHuman + "'s name is " + arr[numbHuman-1].getName());

Upvotes: 3

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