如何从静态上下文引用非静态变量名？ [英] How to reference non-static variable name from static context?

问题描述

我正在尝试编写一个允许用户输入团队名称的代码。
这是我的代码：

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

我明白非静态变量名称不能是从静态上下文引用。我知道如果我把静态从主要位置移开，那么它会起作用，但是：

I understand that "non-static variable name cannot be referenced from a static context". I know that if I take the "static" away from the main then it will work, but:

a）如何在不静止的情况下引用它？

a) How can I reference it without taking the "static" out?

b）有没有办法让用户输入并直接将其分配给变量name，即没有：

b) Is there a way to get the users input and assign it straight to the variable "name" i.e. without the:

Scanner tn = new Scanner(System.in);
name = tn.nextLine(); 

基本问题我知道，但我还是初学者！
非常感谢，
里程

Basic questions I know, but I am still a beginner! Many thanks, Miles

推荐答案

static 方法不允许直接使用非静态变量，因为非静态/实例变量在对象创建时在内存中初始化。因此，您需要创建该类的对象，然后使用该变量。做这样的事情：

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();    

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