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Index › Programming Questions & Help › Syntax Questions › Beginner: Changing month() to a name
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Beginner: Changing month() to a name (Read 433 times)
bernardroth
Beginner: Changing month() to a name
Jan 25th, 2008, 4:48pm  
I'm having trouble changing the month() from a number to a word.

I'm new to C programming, so I'm guessing I'm missing something simple. Maybe it's because I can't change a variable to a word?

I thought this would change it:

if(month() == 1){
  month() = "JAN";
   }

Thanks for your help.



---------------------My Code--------------------------
PFont font;

void setup() {
 size(screen.width,screen.height);
 //frame.setResizable(true);
}

void draw() {
 
   background(255);
   //rect(10, 10, width-20, height-20);
 
 font = loadFont("Univers45.vlw");
 textFont(font, 30);
 
 
 background(0);
 int s = second();
 int m = minute();
 int h = hour();
 int d = day();
 int o = month();
 int y = year();
 
 //time
 String t = nf(h,2) + ":" + nf(m,2) + ":" + nf(s,2);
 text(t, screen.width-160, screen.height-60);
 //day
 String a = nf(d,2) + " " + nf(o,2) + " " + nf(y,2);
 text(a, screen.width-160, screen.height-30);
}
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JohnG
Re: Beginner: Changing month() to a name
Reply #1 - Jan 25th, 2008, 4:57pm  
You can't assign a value to a function, which is what you're trying to do.
What you need to do is have a String variable, and you assign the right name to that variable, depending on the value that month() returns to you.

e.g.
Code:

String m;
if(month() == 1)
  m="Jan";
else if(month() == 2)
  m="Feb";
//etc etc
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eskimoblood
Re: Beginner: Changing month() to a name
Reply #2 - Jan 25th, 2008, 5:38pm  
Another way is to save your month names in an array.
Code:

String[] monthNames=["jan", "feb", ...]
String month = monthNames[month()-1];
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Andreas Köberle {eskimoblood}
222550793  
bernardroth
Re: Beginner: Changing month() to a name
Reply #3 - Jan 25th, 2008, 8:37pm  
Now I get this error:

Semantic Error: No applicable overload for a method with signature "nf(java.lang.String, int)" was found in type "processing.core.PApplet". Perhaps you wanted the overloaded version "java.lang.String[] nf(int[] $1, int $2);" instead?

I know this error is telling me that nf will not work with the new variable. I don't know how to properly code this.

Any help would be appreciated.

Thanks.



---------------------My latest code-------------------
PFont font;

void setup() {
 size(screen.width,screen.height);
 //frame.setResizable(true);
}

void draw() {
 
   background(255);
   //rect(10, 10, width-20, height-20);
 
 font = loadFont("Univers45.vlw");
 textFont(font, 30);
 
 
 background(0);
 int s = second();
 int m = minute();
 int h = hour();
 int d = day();
 //int o = month();
 int y = year();
 
  String o;
if(month() == 1)
 o="Jan";
else if(month() == 2)
 o="Feb";
else if(month() == 3)
 o="Mar";
else if(month() == 4)
 o="Apr";
else if(month() == 5)
 o="May";
else if(month() == 6)
 o="Jun";
else if(month() == 7)
 o="Jul";
 
 
 
 //time
 String t = nf(h,2) + ":" + nf(m,2) + ":" + nf(s,2);
 text(t, screen.width-160, screen.height-60);
 //day
 String a = nf(d,2) + " " + nf(o,2) + " " + nf(y,2);
 text(a, screen.width-160, screen.height-30);
}
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JohnG
Re: Beginner: Changing month() to a name
Reply #4 - Jan 25th, 2008, 8:40pm  
Your month string "o" is a string not an int, so you don't need to pass it through nf. so
Code:
" " + nf(o,2) + " "

Should be
Code:
" " + o + " "
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bernardroth
Re: Beginner: Changing month() to a name
Reply #5 - Jan 25th, 2008, 9:01pm  
I changed it to:

 //day
 String a = nf(d,2) + " " + o + " " + nf(y,2);
 text(a, screen.width-160, screen.height-30);

And I get the error:
Semantic Error: The variable "o" may be accessed here before having been definitely assigned a value.

Is the "String o" section not working?
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JohnG
Re: Beginner: Changing month() to a name
Reply #6 - Jan 25th, 2008, 9:03pm  
Change 'String o;' to 'String o = "";'
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bernardroth
Re: Beginner: Changing month() to a name
Reply #7 - Jan 25th, 2008, 9:08pm  
Wow, Thanks!
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