Adding str() array to a single string

Processing Coding Questions
1

I’m having an array of individual strings.
Basically, these are ascii codes converted to a string.

a = a counter
str(char(txtArray[a]))

I could add all strings from the array to a single string ‘ab’ like the following line but this of course, is not practical:

tring ab = str(char(txtArray[1]))+ str(char(txtArray[2]))+ str(char(txtArray[3]));

println(ab);

I tried different methods, using append(), join() from the processing examples, but I just can’t wrap my head around it to make it work. The ‘append’ example here results in an error:

“Type String of the last argument to method(object) doesn’t exactly match the vararg parameter type. Cast to Object to confirm the non-varargs invocation, or pass individual arguments of type object for a varargs invocation.”

How can I add individual strings from an array to a single string?

Here’s the code in my program:

  for(int a = 1; a < txtCount+1; a++){
     //  StringList ab;
      text (char(txtArray[a]),(100+(12*a)),100); // writing to the screen.
     
     String  ab = str(char(txtArray[1]))+ str(char(txtArray[2]))+ str(char(txtArray[3]));
           
     println(ab);  
      
     }
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2

Thanks for looking. I found the solution by using join().

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3

Can you share your solution? It might be very useful for beginners/someone searching for solutions to their same problem online.

You didn’t explain what format txtArray is so I assumed it was ints, but if it was I would do something like:

String numArray(int[] input){
  String str="";
  for(int i=0; i<input.size(); i++){
    str+=char(input[i]);
  }
  return str;
}

which has pretty nasty time complexity. Your solution might be better.

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4

Thanks Jack, much appreciated.
Here’s the code I’m using now instead:

String[] chrtrs = new String[counter];
     
     for(int a = 0; a < counter; a++){

     chrtrs[a] = str(char(txtArray[a])); 
     } 
     
    String joinedChrtrs = join(chrtrs, ""); 

println(joinedChrtrs);

The string ‘joinedChrtrs’ contains all the characters selected now.

As a side note, I needed a rotation value (fraction of 2*PI) converted to a string:

  1. The fractions are converted to an integer.
  2. txtArray is an array containing selected integers.
  3. char converts the integers to ascii.
  4. str converts the ascii to a string.
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