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Thread: Please help with output from Data File!

  1. #1
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    Default Please help with output from Data File!

    I cannot get the data file to print out correctly when I go to the display case. It only prints one name three times.



     
    import javax.swing.*;
    import java.awt.*;
    import java.awt.event.*;
    import java.lang.*;
    import java.util.Scanner;
    import java.io.*;
    import java.text.*;
    import java.math.*;
    import java.util.StringTokenizer;
     
    public class Program5Final
     
    {
       static Scanner scan = new Scanner(System.in);
     //   static BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));
     
     
     
       static int num;
     
       static UnorderedArrayList stringList = new UnorderedArrayList();
     
       static UnorderedArrayList tempList = new UnorderedArrayList();
     
       static StringElement strObject = new StringElement();
     
       static StringElement strOther = new StringElement();
     
       public static void main(String[]args)throws IOException
     
       {
     
          System.out.println("############################################################################");
          System.out.println("#                 The purpose of program five is to display,               #");
          System.out.println("#       insert, delete, search, or quit a list of First Names and          #");
          System.out.println("#   last names. The program is centered around being an ArrayList program  #");
          System.out.println("#            This type of program has many extended classes.               #");
          System.out.println("#     Users will be prompted to input different choices as they wish.      #");
          System.out.println("#  This program is menu driven and is read from a data file                #");
          System.out.println("#	                                                                       #");
          System.out.println("############################################################################");
     
          do {
     
             System.out.println("######################################################");
             System.out.println("#                                                    #");
             System.out.println("#        MENU                                        #"); 
             System.out.println("#     2. Display                                     #");
             System.out.println("#     3. Insert                                      #");
             System.out.println("#     4. Delete                                      #");
             System.out.println("#     5. Search                                      #");
             System.out.println("#     6. Quit                                        #");
             System.out.println("#                                                    #");
             System.out.println("######################################################");
             System.out.println();
             System.out.println(" Please enter 1 or 2 to quit ");
             num = scan.nextInt();	
     
             switch(num)
             {
     
                case 1: Second();
                   break;
                case 2: Display();
                   break;
                case 3: Insert();
                   break;
                case 4: Delete();
                   break;
                case 5: Search();
                   break;
                case 6: System.out.println("Thank you for using this program!");
                   break;
                default: System.out.println("Oops! Please follow directions");
                   break;
             }
          }
           while(num!= 6);
       }
       public static void Second()
       {
          int n = stringList.listSize();
          for(int i=0; i<n-1; i=i+2)
          {
             System.out.println(stringList.retrieveAt(i) + " " + stringList.retrieveAt(i+1));
          }
       }
       public static void Display()throws IOException, FileNotFoundException
       {
          Scanner infile = new Scanner(new FileReader("G:\\DataFileDS.txt")); 
          StringTokenizer token = new StringTokenizer(infile.nextLine());
          StringElement str = new StringElement();
     
          while(token.hasMoreTokens())
          {
             str.setString(token.nextToken());
             stringList.insert(str);
             int n = stringList.listSize();
             for(int i=0; i<n-1; i=i+1)
             {
                System.out.println(stringList.retrieveAt(i) + " " + stringList.retrieveAt(i+1));
             }
             stringList.print();
          }
     
     
       }   
       public static void Insert()
       {
          System.out.println("Enter the Name to be Inserted");
          System.out.flush();
          strObject.setString(scan.next());
          strOther.setString(scan.next());
          System.out.println();
     
          stringList.insert(strObject);
          stringList.insert(strOther);
          System.out.println("The New List Is:");
     
          stringList.print();
          System.out.println();
       }
       public static void Delete()
       {
          System.out.print("Enter the name that you would like deleted:");
     
          System.out.flush();
          strObject.setString(scan.next());
          strOther.setString(scan.next());
          System.out.println();
     
          stringList.remove(strObject);
          stringList.remove(strOther);
          System.out.println(strObject + "The New List Is:");
     
          stringList.print();
          System.out.println();
       }
     
     
       public static void Search()
       {
     
          System.out.print("Enter the name you would like to Search for ");
     
          System.out.flush();
     
          strObject.setString(scan.next());
          System.out.println();
     
          if(stringList.seqSearch(strObject) != -1)
             System.out.println("The Name is in the list!");
     
          else 
             System.out.println("The Name is Not in the List!");
          System.out.println();
       }
    }

    Output when I choose Case 1:
    Minia
    Minia Jane
    Minia Jane
    Last edited by cocominta; May 7th, 2014 at 10:00 AM.


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: Please help with output from Data File!

    Please edit your post and wrap your code with code tags:
    [code=java]
    YOUR CODE HERE
    [/code]
    to get highlighting and preserve formatting.

    Please post the program's output and add some comments showing what it should be.

    Also post a list of what the user's responses must be to execute the code and show the problem.
    If you don't understand my answer, don't ignore it, ask a question.

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