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Thread: Program to read from created file

  1. #1
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    Default Program to read from created file

    This is the code i am currently working with. What it is supposed to do is read the file "scripts.dat" which is the following

    SCRIPTS.DAT
    Secret Assassins 0 1 0 0 1 0 0 1 1 40
    The UltraZombies 0 1 0 1 0 1 0 2 2 120

    scripts.dat is delimited by tabs ("\t")



    import java.util.Scanner;
    import java.io.*;
    public class driver
    {
    public static void main (String[]args) throws Exception
        { 
            File script = new File ("scripts.dat");
            Scanner s1 = new Scanner(script);
            s1.useDelimiter("\t");
            String script1 = s1.next();
            System.out.println(script1);
            for(int i = 0; i<10; i++)  //if i<10 there is an error so i have to put it to 9 for it to run that is because
                                                   //java tries to use "40 TheUltraZombies" as a integer but it isnt
            {
            int script2 = s1.nextInt();
            System.out.println(script2);
            }
     
            String script3 = s1.next();
            System.out.println(script3);
        }
    }

    the output of the code is
    Secret Assassins
    0
    1
    0
    0
    1
    0
    0
    1
    1
    40 The UltraZombies

    the problem is the "40 The UltraZombies"
    i'm trying to create the code so that the output is

    Secret Assassins
    0
    1
    0
    0
    1
    0
    0
    1
    1
    40
    The UltraZombies

    40 and ultrazombies should be on different lines

    i cannot use arrays and i know it can be done without using arrays


  2. #2
    mmm.. coffee JavaPF's Avatar
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    Default Re: Reading from created file

    Good morning aznprdgy,

    How about this?

    import java.util.Scanner;
    import java.io.*;
     
    public class driver {
     
        public static void main(String[] args) throws Exception {
     
            File script = new File("scripts.dat");
            Scanner s1 = new Scanner(script);
            //s1.useDelimiter("\t");
     
            String script1 = s1.next();
            String script2 = s1.next();
            System.out.println(script1 + " " + script2);
     
            while(s1.hasNextInt()){
     
                System.out.println(s1.next());
     
            }
     
            String script3 = s1.next();
            String script4 = s1.next();
            System.out.println(script3 + " " + script4);
     
            while(s1.hasNextInt()){
     
                System.out.println(s1.next());
     
            }
     
        }
    }

    Output:

    Secret Assassins
    0
    1
    0
    0
    1
    0
    0
    1
    1
    40
    The UltraZombies
    0
    1
    0
    1
    0
    1
    0
    2
    2
    120
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  3. #3
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    Default Re: Reading from created file

    ah sorry no
    the values have to actually be separate not just appear so that wont work. I need it so that each individual line can be assigned to a String or int variable.

  4. #4
    mmm.. coffee JavaPF's Avatar
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    Red face Re: Reading from created file

    Quote Originally Posted by aznprdgy View Post
    ah sorry no
    the values have to actually be separate not just appear so that wont work. I need it so that each individual line can be assigned to a String or int variable.
    How about this?

    import java.util.Scanner;
    import java.io.*;
     
    public class driver {
     
        public static int one, two, three, four, five, six, seven, eight, nine, ten;
        public static int one2, two2, three2, four2, five2, six2, seven2, eight2, nine2, ten2;
        public static String zombies, assassins;
     
        public static void main(String[] args) throws Exception {
     
            File script = new File("scripts.dat");
            Scanner s1 = new Scanner(script);
     
            String script1 = s1.next();
            String script2 = s1.next();
            assassins = script1 + " " + script2;
            System.out.println(assassins);
     
            one = s1.nextInt();
            two = s1.nextInt();
            three = s1.nextInt();
            four = s1.nextInt();
            five = s1.nextInt();
            six = s1.nextInt();
            seven = s1.nextInt();
            eight = s1.nextInt();
            nine = s1.nextInt();
            ten = s1.nextInt();
     
            System.out.println(one + "\n" + two + "\n" + three + "\n" + four + "\n"
                    + five + "\n" + six + "\n" + seven + "\n" + eight + "\n" + nine
                    + "\n" + ten);
     
            String script3 = s1.next();
            String script4 = s1.next();
            zombies = script3 + " " + script4;
            System.out.println(zombies);
     
            one2 = s1.nextInt();
            two2 = s1.nextInt();
            three2 = s1.nextInt();
            four2 = s1.nextInt();
            five2 = s1.nextInt();
            six2 = s1.nextInt();
            seven2 = s1.nextInt();
            eight2 = s1.nextInt();
            nine2 = s1.nextInt();
            ten2 = s1.nextInt();
     
            System.out.println(one2 + "\n" + two2 + "\n" + three2 + "\n" + four2
                    + "\n" + five2 + "\n" + six2 + "\n" + seven2 + "\n" + eight2
                    + "\n" + nine2 + "\n" + ten2);
     
        }
    }
    This now creates 2 Strings - 'zombies' & 'assasins'

    And all the Integer values for the first section are stored as 'one', 'two', 'three', 'four', etc...

    All the Integer values for the second section are stored as 'one2', 'two2', 'three2', 'four2', etc...

    You can now call these variables from anywhere in your code.
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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