求各位大神指条明路

[Game-Over]

car.java:33: error: constructor carloan in class carloan cannot be applied to given types;
carloan vn= new carloan(price, downpayment);
^
required: no arguments
found: double,double
reason: actual and formal argument lists differ in length
1 error

这个是我的error.

import java.util.Scanner;

public class car{
	public static void main(String[] args){
		double price;
		double downpayment;
		double interest;
		int months;
		int payment;

	Scanner in= new Scanner(System.in);

System.out.print("Please enter the car price: ");
price=in.nextDouble();
System.out.println();

System.out.print("Please enter the amount of downpayment: ");
downpayment=in.nextDouble();
System.out.println();

System.out.print("Please enter the annual interest rate: ");
interest=in.nextDouble();
System.out.println();

System.out.print("Please enter the loan period in months: ");
months=in.nextInt();
System.out.println();

System.out.print("Please enter the number of payments you have paid: ");
payment=in.nextInt();
System.out.println();

carloan vn= new carloan(price, downpayment);

System.out.print("The amount borrowed is: "+ vn.getamountborrowed());
System.out.print("The monthly payment amount is: "+ vn.getmonthlyrate());
}}

public class carloan{
	private double price;
	private double downpayment;
	private double interest;
	private int months;

public double getamountborrowed(){
	return price-downpayment;
}

public double getmonthlyrate(){
			double P=price-downpayment;
			double R=interest/12;
			double B=1+R;
			double C= Math.pow(B,months);
			double D=R*C;
			double E=C-1;
			double F=D/E*P;
			return price;
}}

我想知道为什么会出现这样的error.

[冰女潮汐]

建议楼主类名首字母大写吧

[-江沐风-]

构造方法，你看一下！ 没有构造方法，怎么传参数！

[卡卡吉利]

引用 1 楼 u012724379 的回复:

构造方法，你看一下！ 没有构造方法，怎么传参数！

+1

[Game-Over]

引用 1 楼 u012724379 的回复:

构造方法，你看一下！ 没有构造方法，怎么传参数！

大神可否说的再详细一些？我是个新手，没怎么接触过构造方法这个词。谢谢了

[Game-Over]

引用 2 楼 zuoziji_lj 的回复:

[quote=引用 1 楼 u012724379 的回复:] 构造方法，你看一下！ 没有构造方法，怎么传参数！

+1[/quote]大神可否说的再详细一些？我是个新手，没怎么接触过构造方法这个词。谢谢了

[-江沐风-]

构造方法可以理解为是为了初始化数据，就是这样：

public carloan(double price,double downpayment)
	{
		this.price = price;
		this.downpayment = downpayment;
	}

学Java怎么会不知道构造方法呢？建议找本书看看，这是Java最基础的东西！

[Jandison_lz]

no constructor

[染指黄昏]

缺少构造函数 java基础再好好看看 照着列子敲

[tony4geek]

构造函数 参数

[aaronsuLoveM]

构造方法，setget方法。。。。没有传参数