End of file while parsing

[Subhashish Pattnaik]

Dear all, am a newbie to this enthralling world of java.
The other day when i was trying putting in my head into the norms of inheritance, i found that a subclass object was unable to invoke a the constructor for the base class. and when i tried sorting the same by putting in a constructor for the subclass and then invoking it by the subclass object i came across this "end of file while parsing problem".
I am pretty sure that something is wrong.... perhaps with my understanding!! could someone help me over this.

Regards
Subhashish

[Christophe Verré]

What could that be ? Forgot to close a statement or a class ? It's difficult to say without seeing your code, without knowing when it happens (at compile time ?), where (console, IDE?), and what the exact error message is.

[Subhashish Pattnaik]

Many thanks Verre for having taken the time to reply back to the post.

This is the program which should give you a better insight of all the happenings.

class box
{
	double width;
	double height;
	double depth;

	
	box (box ob)
	{
		width  = ob.width;
		height = ob.height;
		depth  = ob.depth;
	}

	box(double w,double d,double h)
	{
		width = w;
		depth = d;
		height = h;
	}

	box()
	{
		width = -1;
		depth = -1;
		height = -1;
	}

	box (double len)
	{
		width = depth =height =len;
	}

	double volume()
	{
		return width*depth*height;
	}
}

class boxwt extends box
{
	double weight;

	boxwt(double w,double d,double h, double m)
	{
		width = w;
		depth = d;
		height = h;
		weight = m;
	}

	boxwt( double p)
	{
	width = depth =height =p;
	}


class simpinh
{
	public static void main(String args[])

	{
		double vol;
		boxwt mybox1 = new boxwt(13.5,16.5,52.6,45.5);
		boxwt mybox2 = new boxwt(24.3);
		box b = new box();
		
		vol = mybox1.volume();
		System.out.println("Volume of the box is " + vol);
		
		vol= mybox2.volume();
		System.out.println("Volume of so called cube is " + vol);

		vol = b.volume();
		System.out.println("Volume now in the default constrcutor is :" +vol);
	}
}

Hope this program should be quite familiar to you.
I need your help in sorting this out which shows me "end of file while parsing" every time i compile it. I am executing these programs in the concsole mode.

Regards

[Jesper de Jong]

Welcome to JavaRanch.

Please UseCodeTags when you post source code (I added them this time for you - I'm a moderator so I can edit your post).

About your problem: You forgot a closing } around line 56.

[Christophe Verré]

1. Give your class a name starting with a capital letter
2. You need at least one public class, the one with the main method
3. You need to close class boxwt (closing bracket missing)
4. You need to format your code clearly. This will help you spot unclosed brackets

And next time that you want to post some code, please UseCodeTags. (and welcome to the ranch )

[Bobby Smallman]

Those sneaky } jerks! I assume because of this error it means you are learning without a fancy schmancy IDE like Eclipse or Netbeans. Learning java with a more simple text-editor can be great for developing your mind to see errors in code and can be very beneficial if you end up going for certification, so keep up the good work! Oh yeah...I almost forgot... Welcome to the Ranch Subhashish!

[Subhashish Pattnaik]

Oh am extremely sorry for not having put the indentations and made the use of "UseCodeTags" . Will keep that in mind,the next time i trouble u.

And many thanks to you guys in person (Jesper,Verre and Bob)!!
Obliged to you for having got such a prompt reply inspite of your busy schedule.

I will better go through the snippets of "As to how to post questions", the next time i bug you!!

All smiles

[Campbell Ritchie]

Welcome to the Ranch

You shouldn't write code the way you think You should write code. Most people think you write code like this

public class HelloWorld
{

public class HelloWorld
{
   public static void main(String[] args)
   {

public class HelloWorld
{
   public static void main(String[] args)
   {

public class HelloWorld
{
   public static void main(String[] args)
   {
      System.out.println("HelloWorld");

public class HelloWorld
{
   public static void main(String[] args)
   {
      System.out.println("HelloWorld");
   }

public class HelloWorld
{
   public static void main(String[] args)
   {
      System.out.println("HelloWorld");
   }
}

. . . but you shouldn't That is how you would write a letter, but that method makes it easy to get your {} paired incorrectly. Write it like this

public class HelloWorld

public class HelloWorld
{
}

public class HelloWorld
{
   public static void main(String[] args)
}

public class HelloWorld
{
   public static void main(String[] args)
   {
   }
}

public class HelloWorld
{
   public static void main(String[] args)
   {
      System.out.println("HelloWorld");
   }
}

That way you will always have the {} in pairs. Make sure to indent them correctly; MS NotePad is no used for that; try NotePad2 or NotePad++ or jEdit, which support bracket highlighting, automatic indentation, etc.

[Giovanni Montano]

Campbell Ritchie wrote:Welcome to the Ranch

You shouldn't write code the way you think you should write code. (cut..)

There is another cool way:just taking the habit to press the <enter> button anytime you type a "{"

the respective curl bracket } will be automatically set up, and the cursor will be like this:

public enemyDoRap() {
///HI I am a cursor, you will see me here blinking at your commands in place of this long annotation
}

[Campbell Ritchie]

Don't write such long comments; they make the post harder to read. And don't call comments annotations. Your method of pushing enter will only work if you use an IDE; my technique will work on a decent text editor (preferably with automatic indentation enabled).

[Giovanni Montano]

Campbell Ritchie wrote:Don't write such long comments; they make the post harder to read. And don't call comments annotations. Your method of pushing enter will only work if you use an IDE; my technique will work on a decent text editor (preferably with automatic indentation enabled).

OK, point taken, make sense for people that have to read the post, I have to tame my narcisism:) and respect everyone time. Also I have to write more slowly without doing grammar mistakes and typos. thank you for the feedback