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Index › Programming Questions & Help › Syntax Questions › FIRST TIME THRU SWITCH
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FIRST TIME THRU SWITCH (Read 295 times)
nmoorecsd
FIRST TIME THRU SWITCH
Dec 22nd, 2008, 6:54pm  
How would one go about coding this outside of reading in a file with a switch on it, which is updated and then written back out to the file.
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sw01
Re: FIRST TIME THRU SWITCH
Reply #1 - Dec 22nd, 2008, 8:35pm  
Is this it?:
Code:


String lines[] = loadStrings("switchlist.txt");
println("there are " + lines.length + " lines");
for (int i=0; i < lines.length; i++) {
  println(lines[i]);
  if(lines[i].equals("OFF")){
    lines[i] = "ON";
  }else if(lines[i].equals("ON")){
    lines[i] = "OFF";
  }
}

// now write the strings to a file, each on a separate line
saveStrings("data/switchlist.txt", lines);



content of switchlist (load it into data folder)
Code:

ON
OFF
ON
OFF
OFF


Run this several times - the switches in the file will toggle.
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nmoorecsd
Re: FIRST TIME THRU SWITCH
Reply #2 - Dec 22nd, 2008, 11:58pm  
What I was wondering was if there was a slicker way of coding the solution.
In my program I am having a pseudo conversation with the user.
So obviously, immediately after the program gets executed the the first thing it does is send out a WINDOW and then waits for mouse or keyboard response. When the program gets executed again it checks for that response and acts accordingly.
But its that very first time I am trying to detect with a view to displaying a window with differing contents to that of the window displayed on the nth time thru.
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sw01
Re: FIRST TIME THRU SWITCH
Reply #3 - Dec 23rd, 2008, 12:10am  
Yes, there are a lot better ways of expressing it, but is there a problem with the solution provided, other than its total lack of elegance? Smiley You did want the program to use a file, rather than IPC, right?

Maybe a working mock project code would help clarify the problem at hand.
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