How to replace a character in a string with a set of characters? for instance, space = ' ' ?

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How to replace a character in a string with a set of characters? for instance, space = ' ' ?

in General Discussion • Other • 1 year ago

So I basically have a system set up that's reading serial data, temperature and humidity, which looks like "65.25 99.1" coming in. I want to transform that to
"Temperature: 65.25 F 
Humidity: 99.1 %'
 is a new line in HTML, btw. I've tried a few things.. it doesn't seem to let me access each word in the array separately. What do I do?

Replies(8)

PhiLho

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

Regular expression:

String data = "65.25 99.1";
String html = data.replaceAll("([\\d.]+) ([\\d.]+)", "Temperature: $1 F Humidity: $2 %");
println(html);

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

Thanks! Now the problem is that if I want to saveStrings to a file, it won't let me because it needs a Strings[] and not a regular non array strings... what is the difference?

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

Also your example just plain doesn't work for me ;/

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

The former is an array of Strings, which will be written into different lines in the .txt file...
The latter is a single String.

If you want to save it all to one line, then you could use the following:

String[] arrayOfStrings = {html};
saveStrings(path, arrayOfStrings);

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

Went about it another way. not sure why processing makes it so difficult to go between an array of strings and a single string.......

void makeFile() {
// this next line is just for testing..
String words = "apple bear";
// split the words at a space, fills array
String[] list = split(words, " ");
// create new string array
String[] output = new String[1];
// change the first element in the array just add the two strings with a 
output[0] = list[0] + " " + list[1];
// println(output);
// save
saveStrings("temp.html", output);

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

" Also your example just plain doesn't work for me ;/"
? Click on Copy code, paste in PDE (1.5.1), run. Works for me.

And calsign's example should have been: String[] array = new String[] { yourString };

calsign

Re: Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

String[] arrayOfStrings = {html};

works for me, am I doing something wrong that I don't know about?

Re: How to replace a character in a string with a set of characters? for instance, space = ' ' ?

1 year ago

No, calsign, sorry, I was too hasty in my answer late yesterday.

My syntax is for when there is no declaration (no type) before the variable.

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How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

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Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

Re: How to replace a character in a string with a set of characters? for instance, space = '<br>' ?

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