Problem with constructors - Error "Cannot find symbol constructor"

[joshmo]

Hey all..am quite new to Java and I have encoutered a problem with my program. I am getting the error message "cannot find symbol constructor". I have tried to figure it out but I have failed. I have read around that adding an empty constructor would help but this is not working either so I am just confused. any help is needed.thanks. Below is the entire code.

class Book{
	
	private String author;
	private String title;
	private int year;
	private Chapter first;
	private Chapter second;
	private Chapter third;
	
	public Book(){
		/*author="josh";
		title="josh";
		year=0;
		first=0;
		second=0;
		third=0;*/
	}
	
	public void Book(String author, String title,int year,Chapter first,Chapter second,Chapter third){
	
		this.author=author;
		this.title=title;
		this.year=year;
		this.first=first;
		this.second=second;
		this.third=third;
		
	}
	
	public String getAuthor()
	{
		
		return author;
	}
	
	public String getTitle()
	{
		return title;
	}
	
	public int getYear()
	{
		return year;
	}
	
		
	/*private int TotalPages()
	{
		return numberOfPages;	
	}*/
	
	public void printInfo()
	{
		System.out.println("Book title: " +getTitle());
		System.out.println("");
		System.out.println("Book Author:" +getAuthor());
		System.out.println("");
	/*	System.out.println("Chapter1:");
		System.out.println("");
		System.out.println("Title:" +getTitle());
		System.out.println("");
		System.out.println("Number of pages:" +getPages());
		System.out.println("");
		System.out.println("Chapter2:");
		System.out.println("");
		System.out.println("Title:" +getTitle());
		System.out.println("");
		System.out.println("Number of pages:" +getPages());
		System.out.println("");		
		System.out.println("Chapter3:");
		System.out.println("");
		System.out.println("Title:" +getTitle());
		System.out.println("");
		System.out.println("Number of pages:" +getPages());
		System.out.println("");*/
	}

}

class Chapter
{
	
	private String title;
	private int numberOfPages;
	
	public Chapter()
	{
		title="";
		numberOfPages=0;	
	}
	
	public void Chapter(String title, int numberOfPages)
	{
		this.title=title;
		this.numberOfPages=numberOfPages;
	}
	
	public String getTitle()
	{
		return title;
	}	
	
	public int getPages()
	{
		return numberOfPages;
	}
	 
}

class mainPrg
{

	public static void main (String[] args)
	{
		Chapter chptobj1=new Chapter("Introduction",100);
		Chapter chptobj2=new Chapter("Main Ideas", 150);
		Chapter chptobj3=new Chapter("Conclusion", 200);
		
		Book bkobj1=new Book();
		
	//	chptobj1.printInfo("josh","A good year",2008,100,201,301);
	}
}

PS. Please ignore the comments

[javaAddict]

Please post the errors you get and at which line you get them

[joshmo]

Iam getting the same error message below from line 115 to line 117
"cannot find symbol constructor Chapter(java.lang.String,int)"

[Wez]

Hey,

The problem is you are calling a non-existing contructor. You don't have a constructor which can receive any args, because a method returning void is NOT a contructor :-)

[joshmo]

Thanks. that worked but I need some more clarification. In the class Book, the constructor is "public void Book(..)" How come this does not give any errors?

[Ezzaral]

That is just a method declaration, not a constructor. As already stated above, constructors do not specify a return type because they always return an instance of that class.

[joshmo]

Oh...I think I get it now. Thanks