How to reference non-static variable name from static context?

Question

I am trying to write a code that lets the user enter a team name. Here is my code:

public class Team {
    public String name;

    public static void main(Strin         


        

Answer 1

static methods do not allow to use the non-static variables directly because non-static/instance variables are initialized in memory on object creation. Hence you need to create an object of the the class and then use the variable. Do something like this:

Team teamObj = new Team();
//now access name variable using teabObj instance
teamObj.name = tn.nextLine();    

Answer 2

name is a team name. So you need to instantiate a new Team object and set its name :

public static void main(String[] args) {
    System.out.println("Enter name team");
    Scanner tn = new Scanner(System.in);
    Team team = new Team();
    team.name = tn.nextLine();     
}

Answer 3

Create a Team object if you want.

Team team = new Team();
team.name = tn.nextLine();

Answer 4

You can use reflection as follows to access that non static field.

    System.out.println("Enter name team");
    Scanner tn = new Scanner(System.in);
    Team team=new Team();
    Field field=Team.class.getField("name");
    field.set(team,tn.next());
    System.out.println((String) field.get(team));

Live demo for reflection.

Or you can try as follows.

   Team team = new Team();
   team.name = tn.nextLine();   

Live demo

Answer 5

Static methods/variables are bound to class. They have no access to non-static variables ( they have no idea on which instance of class they should call the method). You have to create object, and then call the non-static method.