OOP instance variables at the class level

import java.util.Scanner;

public class CustomMob {

    String name;
    String type;
    String hostility;
    String colour;

    public CustomMob (String name, String type, String colour, String hostility, String location){
        this.name =name;
        this.type =type;
        this.hostility = hostility;
        this.colour=colour;
    }

    public String getName (){
        return name;
    }

    public void changeName(String newName){
        name = newName;
    }


    public static void main(String[] args){

        CustomMob myNewMob = new CustomMob("Bob", "Creeper","green","Dangerous","plains");
        System.out.println("My mobs name is: " +myNewMob.getName());
        Scanner input = new Scanner(System.in);
        System.out.println("Please input the new name you want for your mob");
        String newName = input.next();
        myNewMob.changeName(newName);

        System.out.println("My mobs name is: " +myNewMob.getName());


    }
}