Resolving a constructor error

Question

Ok I'm new at this java prog stuff but here's my dilema. I'm having trouble trying to get an object work. I'm using a test program to call up a method in another program but I'm having no luck trying to get the test program to compile. The first program compiles fine. Any help would be great. Here's my programs is anybody can spot what I'm doing wrong.
Program #1:public class Stock
     { //declaring variables and method Stock
     private String Symbol;
     private String Name;
     private double PreviousClosingPrice;
     private double CurrentPrice;
     public Stock(String Symbol, String Name, double PreviousClosingPrice, double CurrentPrice){
     this.Symbol = Symbol;
     this.Name = Name;
     this.PreviousClosingPrice = PreviousClosingPrice;
     this.CurrentPrice = CurrentPrice;
public String getSymbol(){
     return Symbol;
public void setSymbol (String Symbol){
     this.Symbol = Symbol;
public String getName(){
     return Name;
public void setName (String Name){
     this.Name = Name;
public double getPreviousClosingPrice (){
     return PreviousClosingPrice;
public void setPreviousClosingPrice (double PreviousClosingPrice) {
     this.PreviousClosingPrice = PreviousClosingPrice;
public double getCurrentPrice (){
     return CurrentPrice;
public void setCurrentPrice (double CurrentPrice)
     this.CurrentPrice = CurrentPrice;
     } //this method will calculate percentage diffenrence of stock from the previous day
public double ChangePercent ()
     double ChangePercent;
     ChangePercent = (CurrentPrice - PreviousClosingPrice)/PreviousClosingPrice * 100;
     return ChangePercent;
Program #2
public class TestStock
public static void main (String [] args)
     String Symbol = "NYIT";
     String Name = "New York Institute of Technology";
     double PreviousClosingPrice = 100.00;
     double CurrentPrice;
     System.out.println ("What is " + Symbol + " - " + Name + " current price?");
     CurrentPrice = DataInput.readDouble ();
     Stock stock = new Stock();
     stock.setSymbol (Symbol);
     stock.setName (Name);
     stock.setPreviousClosingPrice (PreviousClosingPrice);
     stock.setCurrentPrice (CurrentPrice);
     System.out.println ("The change of stock " + Symbol + " - " + Name + " is " + stock.ChangePercent () + "% from the yesterday closing price of $" + PreviousClosingPrice + ".");

Answer 1

Stock stock = new Stock();The error message referred to this line, didn't it? Your Stock class doesn't have a constructor defined this way, with no parameters. But that is not Stock's problem, I think you should have writtenStock stock = new Stock(Symbol, Name, PreviousClosingPrice, CurrentPrice);and omitted the four lines of code following.