主类方法在类错误中不是静态的 [英] Main method is not static in class error

问题描述

class useTent
{
    Scanner keyboard=new Scanner (System.in);

    public void main (String[] args)
    {

        Tent t= new Tent();
        HireContract hc = new HireContract();
        ProcessHire(t, hc);
    }
}

这是我的代码，我一直都是这样错误：

this is my code, and i keep getting the same error:

主要方法在类useTent中不是静态的，请将main方法定义为：
public static void main（ String [] args）

" Main method is not static in class useTent, please define the main method as: public static void main(String[] args) "

当我将其设为静态时，我收到以下错误：

and when i make the it static i get the following error:

C：\ Users \Emma \Documents\opps ass1 \useTent.java:22:error:natic static method
ProcessHire（ Tent，HireContract）不能从静态上下文ProcessHire（t，hc）引用;

"C:\Users\Emma\Documents\opps ass1\useTent.java:22: error: non-static method ProcessHire(Tent,HireContract) cannot be referenced from a static context ProcessHire(t, hc);"

并且还是

错误：主要方法在类useTent中不是静态的，请将main方法定义为：
public static void main（String [] args ）

"Error: Main method is not static in class useTent, please define the main method as: public static void main(String[] args)"

推荐答案

Java默认查找方法

Java by default looks for a method

public static void main (String[] args) { }

或者说

public static void main (String ...args) {}

args可以是任何名称，如
public static void main（String ... arguments）{}

args could be any name like public static void main (String ...arguments) {}

如果你已经有一个公共静态void main方法然后你可以有另一个main方法作为普通方法。

If you already have a public static void main method then you can have another main method which would act as normal method.

现在当你使方法静态时你会得到另一个错误，因为在静态上下文中，调用非静态方法（本地到类）而不初始化它的对象会产生错误，因为java不允许来自静态上下文/方法的非静态调用。

Now when you make the method static you get the other error because in a static context, calling a non static method(local to class) without initializing it's object would give error as java don't allow non static calls from static context/methods.

 non-static method error

一个示例解决方案是使ProcessHire方法静态： -

One example solution is make ProcessHire method static:-

class UseTent
{
    Scanner keyboard=new Scanner (System.in);

public void main (String[] args)
    {

    Tent t= new Tent();
    HireContract hc = new HireContract();
    ProcessHire(t, hc);

    }

public static void processProcessHire(Tent tent,HireContract hireContract){
//your method definition
}
}

或者如果你不能使方法静态，那么使用下面的方法： -

or if you can't make the method static then use approach below:-

class UseTent
{
    Scanner keyboard=new Scanner (System.in);

public void main (String[] args)
    {

    Tent t= new Tent();
    HireContract hc = new HireContract();
   new UseTent().ProcessHire(t, hc);

    }

public void processProcessHire(Tent tent,HireContract hireContract){
//your method definition
}
}

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