Thread: Write a program that reads the timetable from a file and prints out to the screen?

**Initial Format saved as a text document:**

04
05 10 25 40 55
06 05 15 25 35 45 55
07 00 05 10 15 20 25 30 35 40 45 50 55
08 00 05 10 15 20 25 30 35 40 45 50 55
09 00 05 10 15 20 25 30 35 40 45 50 55
10 00 05 10 15 20 25 30 35 40 45 50 55
11 00 05 10 15 20 25 30 35 40 45 50 55
12 00 05 10 15 20 25 30 35 40 45 50 55
13 00 05 10 15 20 25 30 35 40 45 50 55
14 00 05 10 15 20 25 30 35 40 45 50 55
15 00 05 10 15 20 25 30 35 40 45 50 55
16 00 05 10 15 20 25 30 35 40 45 50 55
17 00 05 10 15 20 25 30 35 40 45 50 55
18 00 05 10 15 20 25 30 35 40 45 50 55
19 00 05 10 15 20 25 30 35 40 45 50 55
20 00 05 10 15 20 25 30 35 40 45 50 55
21 05 15 25 40 55
22 10 25 40 55
23 10 25 40 55 55
00 10 25 40 55
01 17 47
02 17 47
03 17 47

**Desired result should look like this:**

05:10 05:25 05:40 05:55
06:05 06:15 06:25 06:35 06:45 06:55
07:00 07:05 07:10 07:15 07:20 07:25 07:30 07:35 07:40 07:45 07:50 07:55
08:00 08:05 08:10 08:15 08:20 08:25 08:30 08:35 08:40 08:45 08:50 08:55
09:00 09:05 09:10 09:15 09:20 09:25 09:30 09:35 09:40 09:45 09:50 09:55
10:00 10:05 10:10 10:15 10:20 10:25 10:30 10:35 10:40 10:45 10:50 10:55
11:00 11:05 11:10 11:15 11:20 11:25 11:30 11:35 11:40 11:45 11:50 11:55
12:00 12:05 12:10 12:15 12:20 12:25 12:30 12:35 12:40 12:45 12:50 12:55
13:00 13:05 13:10 13:15 13:20 13:25 13:30 13:35 13:40 13:45 13:50 13:55
14:00 14:05 14:10 14:15 14:20 14:25 14:30 14:35 14:40 14:45 14:50 14:55
15:00 15:05 15:10 15:15 15:20 15:25 15:30 15:35 15:40 15:45 15:50 15:55
16:00 16:05 16:10 16:15 16:20 16:25 16:30 16:35 16:40 16:45 16:50 16:55
17:00 17:05 17:10 17:15 17:20 17:25 17:30 17:35 17:40 17:45 17:50 17:55
18:00 18:05 18:10 18:15 18:20 18:25 18:30 18:35 18:40 18:45 18:50 18:55
19:00 19:05 19:10 19:15 19:20 19:25 19:30 19:35 19:40 19:45 19:50 19:55
20:00 20:05 20:10 20:15 20:20 20:25 20:30 20:35 20:40 20:45 20:50 20:55
21:05 21:15 21:25 21:40 21:55
22:10 22:25 22:40 22:55
23:10 23:25 23:40 23:55 23:55
00:10 00:25 00:40 00:55
01:17 01:47
02:17 02:47

I have stored the file to an arrayList but would like to manipulate things to get the desired format? Any suggestions/help is highly appreciated. This is what i have written so far.

 
 package TestPaket;
 
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Scanner;
 
public class BustimeTable {
 
	private static ArrayList<Time> timesArray = new ArrayList<Time>();
 
 
	public static void main(String[] args) {
 
		Scanner scanner = null;
 
		try {
 
		File file = new File("C:/Users/Tommy/workspace/Prov/SLtid.txt");
	    scanner = new Scanner(file);
		while(scanner.hasNextLine()){
			String[] tokens = scanner.nextLine().split("\\s+");
 
				for (int i= 0; i< tokens.length; i++)
				{
 
					Time t = new Time(tokens[i], tokens[i].substring(01));
 
				// new time ( hour, minute )
 
 
			System.out.println(t);	
				}
 
		}} catch (Exception e) { 
			e.printStackTrace();
		}}}

I have another class called the time class that basically sends the hour and minutes to the main class:

 
public class Time {
 
		int hr;
		int minute;
 
		Time(String t, String m){
 
		hr = Integer.parseInt(t);
		minute = Integer.parseInt(m);
 
	}
 
 
 
	public String toString(){
 
		return String.format("%02d:%02d", hr, minute);
 
 
}}

Does the data have the hours in the first column and the minutes in the rest of the columns?

Please edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

NOTE: }s should be on a line by themselves.

Can you explain what your problems are? What does the program's output look like?

To put more items on one line do NOT use the println() method for every item.
Use the print() method to put items on the same line and use println() one time at the end of a line to move to the next line.

The logic still doesnt hold up:S

Can you explain what the problem is?
I see that You need to add a space as a separator between the data that is printed:
print(data + " ")

When you print a time, concatenate a space after it:

System.out.print(t + " ");

How does the code get the hours value so it can be used with each printed time?
The hours value is in the first column, the minutes in the following columns.

Glad you got it working.