Printing 5 Strings per line

[mafro]

Hi there, I have a doubly linked list, which contains Nodes which intern contain Strings.

I wish to print the contents of this doubly linked list 5 strings per line.

For example: If the list contained "hello", "world", "apple", "orange", "rainbow", "red", "yellow", "cat", "fish", "house"

the print output would be:

hello world apple orange raindow
red yellow cat fish house

Any help would be great, Thanks.

[Norm]

Try using a loop and a counter. Get the Strings one by one from the list, call print() 5 times and then call println() once

[mafro]

Try using a loop and a counter. Get the Strings one by one from the list, call print() 5 times and then call println() once

Hey Norm, thanks for the reply.

Is this something along the lines you were meaning?

public void print() {

String[] wordList = getStrings();
        for(int i = 0; i < wordList.length; i++) {
                System.out.print(wordList[i]);
                System.out.print(wordList[i]);
                System.out.print(wordList[i]);
                System.out.print(wordList[i]);
                System.out.print(wordList[i]);
                System.out.println();
            }
    }

Because this printed each string five times, then created a new line.

(getStrings is a method i created which just takes all the strings from the Doubly Linked List and puts them into a string array)

EDIT:

Here's the received output:

hellohellohellohellohello
worldworldworldworldworld
appleappleappleappleapple
orangeorangeorangeorangeorange
raindowraindowraindowraindowraindow
redredredredred
yellowyellowyellowyellowyellow
catcatcatcatcat
fishfishfishfishfish
househousehousehousehouse

[Norm]

Why do you print the same String with 5 print() statements? Where is the counter to control how many Strings are printed before a new line is printed.
Try listing the steps in pseudo code the program should take to do what you want it to do. When you get the logic worked out, then try writing the code.

[Tolls]

You want a loop which will print a single entry, based on the index.
So similar to your current loop, but with only the single print().
Now, you'll need another loop around that that'll do the println() once the inner loop is done.

while my index < length of the array
   set your word count to zero
   while my count of strings < 5 and my index < length of my array
      print array[index]
      increment index and my count
   new line

Something like that.

[mafro]

You want a loop which will print a single entry, based on the index.
So similar to your current loop, but with only the single print().
Now, you'll need another loop around that that'll do the println() once the inner loop is done.

while my index < length of the array
   set your word count to zero
   while my count of strings < 5 and my index < length of my array
      print array[index]
      increment index and my count
   new line

Something like that.

Thanks!! I wasn't far off with my first pseudo attempt :(

This is the final result:

public void print() {
        String[] wordList = getStrings();
        int n = 5;
        int i = 0;
        int j = 0;
        
        for(;i < wordList.length;) {
            j = 0;
            for(; j < n && i < wordList.length;) {
                System.out.print(wordList[i] + " ");
                i++;
                j++;
            }
            System.out.println();
        }
    }

Thanks for all the help guys :)

[Tolls]

Both of those 'for' loops would actually look better as 'while' loops, since that's what they are now that you've stripped out the other two sections of a 'for', but that is the sort of thing I was thinking of.
Well done for managing to translate my pseudo into something workable.

[Rabea]

thanx

[Norm]

I'd use one for loop with a if testing the count of items printed on the current line

[J-max04]

wouldnt this work?

for(int i = 0; i < array[].length; i++)
{
    System.out.print(array[i]);
}
System.out.flush();

[Norm]

What problem are you solving? Go read what this thread was about.

What is the last statement (#5) supposed to do?

[J-max04]

flush prints all of the unprinted print(String)'s
i just thought it was an easier way to do it

[Norm]

Does it write a new line character so the next printed output is on the next line?

[J-max04]

what? if you mean are all of the strings printed on the same line, then yes.

[Tolls]

I'd use one for loop with a if testing the count of items printed on the current line

Good point.
Which is why I never trust my first solutions...:)