CODEWITHSUNDEEP
java
Georgi Michev
Georgi Michev

Reputation: 894

Getting the field from another class's object without using static

I have an object declared in one class but now I am in another class and I want to get the field of the object without making everything static. In the current class I don't have the object which exists in the other class and I don't really understand how to call it. If i use a getter I guess I still need the object in the current class to call it, also I don't want to make the fields static, because I want the field unique for every object.

package main;
import daysOfTheWeek.*;

public class Game {

    private int currentDayOfWeek = 1;
    private int totalDays = 1;
    boolean playerHadEvent = false;

    public void startGame(){
        while(true){
            boolean eventDay = false;
            if(currentDayOfWeek == 5 || currentDayOfWeek == 6){      //check if current day isn't Friday or Saturday
                eventDay = true;
            }
            System.out.println("==DAY " + totalDays + ", " + DaysOfTheWeek.getDay(currentDayOfWeek)+"==");
            if(eventDay){
                String event = Events.getEvent();
                if(event.equals("gaming")){
                    System.out.println("Today there is " + Messages.getGamingEvent());
                    if(){ //get the field from another class's object

                    }
                }

            }


            totalDays++;
            currentDayOfWeek++;
            if(currentDayOfWeek == 8){
                currentDayOfWeek = 1;
                playerHadEvent = false;
            }

        }
    }
}

package main;
import daysOfTheWeek.*;
import dices.*;


public class Demo {

    public static void main(String[] args) {

        Student player = new Student();
        Student computer = new Student();

        player.generatePlayer(player);
        computer.generateComputer(computer);

        Game startingGame = new Game();
        startingGame.startGame();

    }
}

thats how i created the 2 objects and set their fields trough a method. Now i am trying to use those 2 objects but in 3rd class

Upvotes: 0

Views: 106

Answers (1)

matt
matt

Reputation: 12347

In your main class:

public class Main{
    public static void main(String[] args){
        Game game = new Game();
        System.out.println(game.getCurrentDayOfWeek());
    }
}

So you need to create the method getCurrentDayOfWeek.

You could make a singleton type pattern.

class Junk{
    int value;
    static Junk instance = new Junk();

    static int getJunkStuff(){
        return instance.value;
    }
    static void setInstance(Junk j){
        instance = j;
    }
}

It sounds like you should structure your code better, so maybe you should paste a more complete example.

A third class needs a reference to those objects? Then give it a reference.

class Third{
    Game game;
    public Third(Game g){
        game = g;
    }
    public Third(){

    }
    public void setGame(Game g){
         this.game = g;
    }
}

So the third example, lets Third have a reference through a setter.

Upvotes: 1

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