Question

I’m working on a really simple text RPG kind of game for a class. I feel like I get everything fine, but when I run the following classes, I get a compiler error.

This is my “Room” class:

import java.io.*;
import java.util.*;

public class Room {

    public static int size;

    public static void Room(int n) {
        size = n;
    }

    public static void showSize() {
        System.out.println(size);
    }
}

This is the class that calls it:

import java.io.*;
import java.util.*;

public class Dungeon {
    public static void main(String [] args) {
        int mySize = 10;
        Room a = new Room(mySize);

        a.showSize();
    }
}

The weird part is, if I run it without any parameters in the Room() constructor, it’s fine, but when I try to pass in a size (either in a variable or explicitly with an int), I get this:

Dungeon.java:8: cannot find symbol
symbol  : constructor Room(int)
location: class Room
        Room a = new Room(mySize);
                 ^
1 error

Answer 1

public static void Room(int n){
    size = n;
}

is not a constructor, it is static method. so, when you try

Room a = new Room(mySize);

Java looks for constructor with parameter and showing compile time error.

Change it to:

public Room(int n){
        size = n;
    }

Read more about constructors here.