Quote:
Originally Posted by sandyw
Hello everyone.
I need some help here.
I can not figure out where to put my .txt info at.
I 'm trying to use my instructure, some what confused. I have also read the info form Java and they really don't give an example on how to use a scanner where the user is prompt to find a text file once the file is found it then will display it
here is my code so far
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public class Reading{
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public static void main(String[] args) throws Exception {
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Scanner kbd = new Scanner(System.in);
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int choice;
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System.out.println("Make a Section: ");
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System.out.println("1. Read Text File ");
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System.out.println("2. Copy Text File ");
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System.out.println("3. Exit ");
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System.out.print("\nPlease press Enter afer each response");
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System.out.println("Enter your choose please: ");
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choice = kbd.nextInt();
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kbd.nextLine();
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if (choice == 1) { // if 1 is select go to makePerson
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String fname;
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FileInputStream fin;
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long datalen=0;
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Scanner kbd1 = new Scanner(System.in);
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System.out.println("Enter file name");
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fname = kbd1.next();
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kbd1.nextLine();
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fin = new FileInputStream("c:\\data.in");// not to sure how the .txt is found
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while( fin.read()!=-1) {
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datalen++;
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}
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System.out.println("File "+fname+" is "+datalen+" bytes long");
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}
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}
thanks
sandyR
PS is this code right.
Do I need to use PrintWriter or can I use Printf(fname)
A few remarks:
- I don't understand the comment "if 1 is select go to makePerson"
- why are you using a separate Scanner for reading the name of the file? You
already had a Scanner instantiated for the System.in input stream.
- You read the filename "fname" supplied by the user but you don't use it.
You use a String literal for the file name instead.
- If you merely want to know the size of the file there's no need to read it all,
byte by byte. Have a look at what the
File class can do for you.
kind regards,
Jos
