Building array from .txt file questions

If I'm catching what you want to do...

Say this is the first .txt's contents

20
53
145
1422
14252

You want to take "20", make that the length of a new Array, and store the remaining Integers into this new Array? If so...

Something like this:

Scanner s = null;
try {
s = new Scanner(new BufferedReader(new FileReader("mydata.txt")));

while (s.hasNext()) {
storageArray[count] = (s.next()); //Store all elements of .txt to an Array.
count +=1;
}
} finally {
if (s != null) {
s.close();
}
}

int count2 = 1;
int count3 = 0;
int[] newArray = new int[storageArray[0]]; //Declare Array w/ size of first int from .txt.
while (count2 <= storageArray[0]) { //Store remaining elements into the new array.
newArray[count3] = storageArray[count2];
count2 += 1;
count3 += 1;
}

Something like that maybe? I'm no coding guru, but that would probably work.

When you get 'Cannot find symbol' errors for variables in your code, it's usually because you haven't declared them, or they're not in scope (e.g. local variables declared in one method and used in another).

I'm guessing you haven't declared them. Where is variable 'element' declared? what type is it? What about storageArray and count?

You have to declare variables before you can use them.

Programs must be written for people to read, and only incidentally for machines to execute...
H. Ableson & G. Sussman

Ok. I am now back in the saddle to try to get this done before midnight so I don't fail my programming course for this semester. I bombed the final (I needed a 37% on the final to pass the class without finishing this project (which is giving me massive difficulties - but I have 100% on all of the other projects) - and I'm not sure I got that 37%.

Not your problem, but I urgently and desperately need help.

Here's the code I have at the moment.

public static int findSmallest(int[]numbers,int index){
int[] element = new int[100];
if (index + 1 == numbers.length){
return numbers[element];
}
else {
return Math.min(numbers[index], findSmallest(numbers,index +1));
}
}

I get incompatible type compile-time error with this line:

return numbers[element];

// main(): application entry point
public static void main(String[] args) {

//FileInputStream fis = new FileInputStream("mydata.txt");
//BufferedInputStream bis = new BufferedInputStream(fis);
//DataInputStream dis = new DataInputStream(bis);

Scanner s = null;

try {
int count = 0;
s = new Scanner(new BufferedReader(new FileReader("input.txt")));
int[] storageArray = new int[100];

while (s.hasNext()) {
storageArray[count] = (s.next()); //Store all elements of .txt to an Array.
count +=1;
}
int count2 = 1;
int count3 = 0;
int[] newArray = new int[storageArray[0]]; //Declare Array w/ size of first int from .txt.

while (count2 <= storageArray[0]) { //Store remaining elements into the new array.
newArray[count3] = storageArray[count2];
count2 += 1;
count3 += 1;
}
}
catch (FileNotFoundException e) {
System.err.println(s + ": cannot be opened for reading");
System.exit(0);
}
catch (IOException e) {
System.err.println("File system error on "+ s);
System.exit(0);
}
finally {
if (s != null) {
s.close();
}
}
}

I get an incompatible types error with this line:

storageArray[count] = (s.next()); //Store all elements of .txt to an Array.

As always, I truly appreciate any help that can be provided.

Thanks,
ateo

P.S. I suspect the code has problems beyond these two compile-time errors that are more significant.

Is there no way to scan the file as ints directly into an int array?

Could I cast what is scanned into int type in order to avoid using that method you spoke of?

Is there no way to scan the file as ints directly into an int array?If you spend a minute to look at the JavaDocs for Scanner (http://java.sun.com/j2se/1.5.0/docs/api/java/util/Scanner.html), you'd see that there is a method to get the next int.
Could I cast what is scanned into int type in order to avoid using that method you spoke of?No, but see above. Why do you want to avoid using that method?

The purpose of computing is insight, not numbers...
R. Hamming

I hate it when a programmer gives up :( I hate it even more when you've helped that programmer and they give up after it. Programming is not a difficult thing, you just have to get a mindset for what you want the program to do, sort out how it should do it, and think of a way to code it that way.

This has helped me a lot (http://www.leepoint.net/notes-java/)

All you have to do to store what you take out of that .txt file is to parse it to an int.

I think it goes something like:

Integer.parseInt(whatYouWantToChangeToInt);

You can do a do{}while() statement and make it just a few lines of code as well.