java - 我的主函数未调用我的对象

我试图通过main函数调用我的对象。由于它需要静态引用，但我却无法做到。有人可以告诉我我在做什么错吗？

private double checking;
private double saving;


    public BankDisplay(double checking,double saving) // Constructor for subclass
    {
    checking=1000;
    saving=1000;

    }


    public void setChecking(double checking){
        this.checking=checking;
    }

    public double getChecking(){
        return checking;

    }

    public void setSaving(double saving){
        this.saving= saving;
    }

    public double getSaving(){
        return saving;

    }

BankDisplay checking1=new BankDisplay(checking, saving);
BankDisplay savings1= new BankDisplay(checking,saving);

当我尝试打印对象checking1和save1主要时，它显示“无法为静态函数提供非静态引用”。

最佳答案

     public BankDisplay(double checking,double saving) // Constructor for subclass
        {
        this.checking=checking;
        this.saving=saving;

        }

There is an error in constructor.


public static void main(String[] args){
   BankingDisplay d1 = new BankingDisplay(100.15,200.15);
   System.out.println(d1.getChecking());
}