Help printing Array

[virkof]

Hi everyone... I am very stuck here trying to print from an Array. Can somebody help please?

Basically I have two different classes, one, which creates Tickets Objects. Each object is an array of 6.

public class Ticket
{
   int theticket[]; // token to be inserted on the array
   
   
   Ticket(int a[])
   {
      theticket = new int[6];
       
   }
}

The second Class, called ArrayTicket is an array of 30 Tickets. Is in this class, where I assign 6 number to each Ticket. My problems is:
I need to print the 30 Tickets(therefo re 6 * 30 numbers) from ArrayTicket Class.
Any idea, how can do it?

[dmjpro]

Hi everyone... I am very stuck here trying to print from an Array. Can somebody help please?

Basically I have two different classes, one, which creates Tickets Objects. Each object is an array of 6.

public class Ticket
{
   int theticket[]; // token to be inserted on the array
   
   
   Ticket(int a[])
   {
      theticket = new int[6];
       
   }
}

The second Class, called ArrayTicket is an array of 30 Tickets. Is in this class, where I assign 6 number to each Ticket. My problems is:
I need to print the 30 Tickets(therefo re 6 * 30 numbers) from ArrayTicket Class.
Any idea, how can do it?

Simply take a two dimensional Array.
Each row indicates a Ticket containing 6 numbers.
Then print them using twi for loops.
Now try some code and paste here .... The experts are here to correct your code.

Debasis Jana

[virkof]

I cannot used two dimensional arrays... specifications of the assignment. Thanks anyway.

[dmjpro]

I cannot used two dimensional arrays... specifications of the assignment. Thanks anyway.

Simply place linearly.
Then do something like this.

[code=java]
for(int i=0;<30;i++)
{
for(int j=0;j<6;j++) System.out.prin tln(array[i*6+j]);
System.out.prin tln("\n"); //Windows Specific
}
[/code]

Debasis Jana

[virkof]

Simply place linearly.

What do you mean by that?

[JosAH]

The second Class, called ArrayTicket is an array of 30 Tickets. Is in this class, where I assign 6 number to each Ticket. My problems is:
I need to print the 30 Tickets(therefo re 6 * 30 numbers) from ArrayTicket Class.
Any idea, how can do it?

Think objects; your other class just wants to print 30 tickets, so it prints them:

[code=java]
for (int i= 0; i < 30; i++)
System.out.prin tln(ticket[i]);
[/code]

All that is needed here is a 'toString()' method in the Ticket class itself: a Ticket
should be able to cough up a String representation of itself. If it has to 'print' six
numbers, so be it: have a look at the StringWriter class. It can be of great help.

kind regards,

Jos

[virkof]

All that is needed here is a 'toString()' method in the Ticket class itself: a Ticket
should be able to cough up a String representation of itself. If it has to 'print' six
numbers, so be it: have a look at the StringWriter class.

If I use a toString() what should I be returning?

ticket[i]

Another of my problems is that when I try to call one of the methods from the main. A Compilation error comes up saying that a non-static method can not be referred from a static context or something like that.

this is very confusing!

[r035198x]

If I use a toString() what should I be returning?

ticket[i]

Another of my problems is that when I try to call one of the methods from the main. A Compilation error comes up saying that a non-static method can not be referred from a static context or something like that.

this is very confusing!

It shouldn't be confusing at all.
The error message eplains it nicely. Your main method is static(as are all other typical main methods). Yet you are trying to refer to a non-static method inside it. That is not allowed and the compiler has rightfully told you that. As Jos said above, *think objects*. Thinking objects is the way to go in Java.

[JosAH]

If I use a toString() what should I be returning?

ticket[i]

Erm, a String? Please read the API documentation of the Object class; it's the
mother of all classes and all classes are supposed to have an (inherited) method
named toString(). It is supposed to return a String representation of the object.

That method is implicitly called by the PrintStream when it should print a non-
primitive thing and also by the StringBuilders that are implicitly called by the
compiler when it fiddles with the overloaded '+' operator. It's very convenient and
most people (such as you) don't even think about it.

kind regards,

Jos