新学java，练习编程，代码如下
import java.io.*;
public class DoubleNumber
{
public static void main(String[] args)
{
double N1;
double N2;
number Number1=new number();
number Number2=new number(3.0,5.0);  //此行有错误
N1=Number1.GetNumber1();
N2=Number1.GetNumber2();
System.out.print (N1);
System.out.print ('n');
System.out.println (N2);
N1=Number2.GetNumber1();
N2=Number2.GetNumber2();
System.out.print (N1);
System.out.print ('n');
System.out.println (N2);
}
}

class number
{
public void number(){N1=0.0;N2=0.0;}
public void number(double a,double b){N1=a;N2=b;}
public  double GetNumber1()
{
double n1;
n1=N1;
return n1;
 }
public double GetNumber2()
{
double n2;
n2=N2;
return n2;
}
private double N1;
private double N2;
}



在第九行出现如下错误F:ICEexerciseclassDoubleNumber.java:9: cannot resolve symbol
symbol  : constructor number  (double,double)
location: class number
number Number2=new number(3.0,5.0);
                               ^
1 error
未能解决，所以特来请教！

public void number(){N1=0.0;N2=0.0;}
public void number(double a,double b){N1=a;N2=b;}

应该是
public number()
和 public number(double a,double b)
吧