Java call method

Question

import java.util.HashMap;
   class Room1 {
       private String description;
       private HashMap<String, Room1> dir = new HashMap<String, Room1>();
       Room1(String de) {
           description = de;
       }
       public String toString() {
           return description;
       }
       public void add(String s, Room1 r) {
           dir.put(s, r);
       }
   }
   class Game {
       Room1 lobby = new Room1("lobby");
       Room1 pub = new Room1("pub");
       lobby.add("one", pub); //syntax error
   }

When i call the add method.the eclipse tell me there are errors existing.i'm confused.i can't find the problem.

Your code that you use to call the add method needs to be inside a method or constructor, not just somewhere in the class Game. You probably forgot to add the main method there. — user6073886
– user6073886, Commented Sep 17, 2018 at 11:45
You can not call a method in class body directly. You need to call in a method. — Mostch Romi
– Mostch Romi, Commented Sep 17, 2018 at 11:46
Welcome to StackOverflow. When you get an error, post the exact error message - that makes it much easier to help you find out what the problem is. Error messages are there to help you find out what the problem is. Don't just say "there are errors". — Jesper
– Jesper, Commented Sep 17, 2018 at 11:54

Lorenz K. · Accepted Answer · 2018-09-17 12:07:28Z

2

You must call the methods in a function.

class Game {
    Room1 lobby = new Room1("lobby");
    Room1 pub = new Room1("pub");
    public Game() {
        lobby.add("one", pub);
    }
}

answered Sep 17, 2018 at 12:07

Lorenz K.

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Comments

Humza · Accepted Answer · 2018-09-17 13:08:44Z

1

Wrap the code in a method .

class Game {
   Room1 lobby = new Room1("lobby");
   Room1 pub = new Room1("pub");

   public void init(){
        lobby.add("one", pub); //syntax error
   }    
}

edited Sep 17, 2018 at 13:08

Humza

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answered Sep 17, 2018 at 12:02

Ramath

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Comments

Sasi Kumar · Accepted Answer · 2018-09-17 12:12:06Z

0

Use correct syntax

public class testing {
public static void main(String arg[]) {

    Room1 lobby = new Room1("lobby");
    Room1 pub = new Room1("pub");
    lobby.add("one", pub);
  } 
 }

edited Sep 17, 2018 at 12:12

answered Sep 17, 2018 at 12:07

Sasi Kumar

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2 Comments

ricardofagodoy Over a year ago

I don't think dir should be public in Room1

Sasi Kumar Over a year ago

@ricardofagodoy i agree..he did mistake in method calling

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