expecting EOF found 'for'

Programming Questions

ggrigo01

in Programming Questions • 6 months ago

Hi,

I am absolutely new to Processing.

I have the following code and it is giving me the error on the line of the FOR loop.

Any suggestions will be greatly appreciated.

Also is it possible in Processing to loop through the string in the way I am trying to?

Thanks.

class Pair {

String letter;

int count;

Pair (String l, int n) {

letter = l;

count = n;

}

void Increment(){

n += 1;

}

void Display(){

println(letter + " " + count);

}

}

String alphabet = "ABCDEFGHIJKLMNOPQRSTUWXYZ";

for (int i = 0; i < alphabet.length; i = i+1) {

println(alphabet[i]);

}

Replies(7)

quarks

Re: expecting EOF found 'for'

6 months ago

The for loop statement must be inside a function/method. Also some other errors. I have highlighted the changes

class Pair {
String letter;
int count;
Pair (String l, int n) {
letter = l;
count = n;
}
void Increment() {
count += 1;
}
void Display() {
println(letter + " " + count);
}
}
String alphabet = "ABCDEFGHIJKLMNOPQRSTUWXYZ";
void setup() {
for (int i = 0; i < alphabet.length(); i = i+1) {
println(alphabet.charAt(i));
}
}

ggrigo01

Re: Re: expecting EOF found 'for'

6 months ago

quarks,

thanks a lot for pointing out the other flaws.

alvar.0

Re: expecting EOF found 'for'

6 months ago

I'm new to Processing too, but isn't that error usually related to the fact that you didn't close your methods properly?

Check your " {" and "}" characters and what's inside them.

Edit : quarks said it in a way that makes more sense.

quarks

Re: expecting EOF found 'for'

6 months ago

Check your " {" and "}" characters and what's inside them.

Yes thats very true for every { there must be a matching } and in many cases the EOF (End Of File) error message is caused by a missing }

In this particular case {} were all matched up but the for loop construct was not inside a function/method and that caused the problem.

ggrigo01

Re: expecting EOF found 'for'

6 months ago

Ok but I am still not able to display the characters each on a line how come?

The following is my code and my output.

What am I doing wrong?

alvar.0

Re: expecting EOF found 'for'

6 months ago

You're using the wrong function, print() and println() display things in the console. For reference :

println() :

Writes to the text area of the Processing environment's console. This is often helpful for looking at the data a program is producing. Each call to this function creates a new line of output. Individual elements can be separated with quotes ("") and joined with the string concatenation operator (+). See print() for more about what to expect in the output.

( http://processing.org/reference/println_.html)

This is what you're looking for :

http://processing.org/learning/text/

You're also not calling the Display() function? I'm not sure what you're trying to do, though.

quarks

Re: expecting EOF found 'for'

6 months ago

String alphabet = "ABCDEFGHIJKLMNOPQRSTUWXYZ";
void setup() {
size(400, 200);
background(255);
fill(0);
for (int i = 0; i < alphabet.length(); i = i+1) {
text(alphabet.charAt(i), i*10 + 10, 50);
}
}

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