Code doesn't work inside "for" statement

[Coreyja]

I am new to Java and would greatly appreciate any help. Here is some code I am working on as basically a proof of concept. I am using a "throws FileNot FoundException". The problem is that when i run the program nothing happens. There are no errors but there is also no output. This same code worked without the "for" statement for just the first number.

Scanner reader = new Scanner(new FileReader("test.txt"));
        for (i=0;i > 10;i++){
            read = reader.nextDouble();
            System.out.println(read);
        }

Here is the text file that it is reading from.

test.txt

12.345
13.345
14.345
15.345
16.345
17.345
18.345
19.345
20.345
21.345

[JosAH]

for (i=0;i > 10;i++){ 
   read = reader.nextDouble(); 
   System.out.println(read); 
} 
 

Look at your code again; a for loop works like this:

for (<initialize>; <condition>; <increment>)
   <statements>;
 

First the <initialize> section is executed once; then the <condition> is tested; if it has a true value then <statements> are executed and finally the <increment> part is executed. Then the <condition> is tested again and the cycle repeats as long as <condition> is true; otherwise the loop finishes.

Look at your <condition>: it isn't true the first time it is tested (0 < 10) so your loop terminated immediately. You probably wanted to write i < 10.

kind regards,

Jos

[Coreyja]

Oh wow! Even I should have been able to catch that one! Thanks alot for the help tho!