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Thread: Still can not call my Subclass method returns. J2EE

  1. #46
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    I guess the correct question is: How do I put the #2 above my while loop and only ask for it when ready?.... I thought I was already doing that.

  2. #47
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    Location
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    Posts
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    Re: Still can not call my Subclass method returns. J2EE

    Post#45 suggested there be two loops:
    1) to get the data
    2) to display the data
    Norm

  3. #48
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    I have implemented 2 while loops and using my if conditionals inside the loops.... I still am having the problems with showing my contacts.... I get both when I am supposed to show business, I get duplicate when I am supposed to show personal, and both works fine.

    Code:
    package contacts2;
    
    //import java.util.ArrayList;
    import java.util.Scanner;
    //import java.util.ArrayList;
    import java.io.File;
    //import java.io.FileNotFoundException;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.io.PrintWriter;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import java.util.*;
    //import java.io.*;
    //import java.util.List;
    
    import java.io.BufferedReader;
    import java.io.FileReader;
    
    
    /**
     *
     * @author Drew
     */
    public class Contacts2 {
         
    
        /**
         * @param args the command line arguments
         */
        public static void main(String[] args) 
        {
            //Instantiates the Scanner Class
            Scanner in = new Scanner(System.in);
            
           // readFile r = new readFile();
            System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
            int enter = in.nextInt();
            
         
             
                 
            
            
            final Formatter x;
            final Formatter y;
            try
            {
                x = new Formatter ("business.txt");
                y = new Formatter("personal.txt");
                
                        //System.out.println("You created a file"); Used as a test
            }
            catch(Exception e)
            {
                System.out.println("you have an error");
            }
                
            final int returnEnter;
            
        
     while (enter == 1 || enter == 2 )//| enter == 3 || enter == 4)
     {
             
           if (enter == 1)
            {
       
              
                   //makes a new Business object
                ContactInfo bCont = new Business();
                  
                  
              //creates a txt file to store data of the business object
               String filename = "business.txt";
               
               //writes to the new business.txt file
                try {
                PrintWriter outputStream = new PrintWriter(new FileWriter(filename, true));
                
                //identifies as hte "Business Contact"
                outputStream.print("Business: ");
                outputStream.print(bCont.firstName()+" ");
                System.out.println();
                outputStream.print(bCont.lastName() + " ");
                System.out.println();
                outputStream.print(bCont.address()+ " ");
                System.out.println();
                 outputStream.print(bCont.email() + " ");
                System.out.println();
                outputStream.print(bCont.phoneNumber() +" ");
                System.out.println();
                outputStream.print(bCont.jobTitle() + " ");
                System.out.println();
                outputStream.print(bCont.org() + " ");
                outputStream.println();
               
                //Close the file stream
                outputStream.close();
                
                //decision to re-enter the loop
               
                
                
                
        
                
            } 
                 catch (IOException ex) {
                    Logger.getLogger(Contacts2.class.getName()).log(Level.SEVERE, null, ex);
                }
                
                 System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
                 int newEnter = in.nextInt();
                 
                 enter = newEnter;
                 
                
              
                 
         
          
                  
              } 
           
              
        
              //Personal Contact
           else if(enter == 2)
              {
                  //creates a new Personal object
                  ContactInfo pCont = new Personal();
                  
                  //freates a new txt file called "personal"
                  
                   String filename = "personal.txt";
                   
                   //wtites to the new personal.txt file
                     try {
                PrintWriter outputStream = new PrintWriter(new FileWriter(filename, true));
                  
                  
                 outputStream.print("Personal: ");
                 outputStream.print(pCont.firstName() + ", ");
                 System.out.println();
                 outputStream.print(pCont.lastName() + ", ");
                 System.out.println();
                 outputStream.print(pCont.address() + ", ");
                 System.out.println();
                 outputStream.print(pCont.phoneNumber() + ", ");
                 System.out.println();
                 outputStream.print(pCont.email() + ", ");
                 System.out.println();
                 outputStream.print(pCont.dob());
                 outputStream.println();
                 
               
                     outputStream.close(); 
                     
                     
                     }
                     catch (IOException ex) {
                    Logger.getLogger(Contacts2.class.getName()).log(Level.SEVERE, null, ex);
                     }
                     System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
                 int newEnter = in.nextInt();
                 
                 enter = newEnter;
              }
     }
                    
                  if(enter == 3){
                  System.out.println("Press 1 to show the Business Cotact\n"
                          + "Press 2 to show the Personal Conatct\n"
                          + "Press 3 to show both contacts.");
                  int showCont = in.nextInt();    
        
        
           
                   
              
             while(enter == 3)
             {
                 
                  
                  //final int newShow = 4;
                  
                  //while(showCont == 1){
                  //while(showCont ==1)//{
                  if(showCont == 1 )
                  {
                  try {
    			File file = new File("business.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");}
                  
    		//showCont = newShow;
                   enter = 4;
                  
                  }
                  //enter =4;
              
                  
                  //else if(showCont == 2 )
                  else if(showCont == 2)
                 // else if(showCont == 2)
                  {
                           try {
    			File file = new File("personal.txt");
    			FileReader fileReader2 = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader2);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader2.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");
    		}//showCont = newShow;
                  enter = 4;
                  }
                  //enter  = 4;
                 
                  //while (showCont == 3)
                  //if(showCont == 3)
                  else //if(showCont ==3)
                  {
                      
                      try {
    			File file = new File("business.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");}
                      //showCont = newShow;
                  }
                        try {
    			File file = new File("personal.txt");
    			FileReader fileReader2 = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader2);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader2.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");
    		}
              
                  //showCont = newShow;
                        enter = 4;
                  
                  
                  
              }  //while(enter == 3); 
     }  
                  
              
                       
       
        
          
         
              
        
             //else //(enter ==4)//else
        
     //}
    
     //else 
        if (enter == 4)
             {
                System.out.println("The program has exited... Have a nice day. ");
                
              
               
             }
            
    //while (enter !=1 && enter != 2 && enter != 3 && enter != 4)
           else
     {
     
                System.out.println("You have inputed an invaled entry, please re-enter.");
                System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                           + "\n 3 to display the contacts \n 4 to Quit " );
                        int newEnter = in.nextInt();
                        
                        enter = newEnter;
            }
            
       //enter = newEnter;
              
              
          
        }
       
    }
                  
    
    //}

  4. #49
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    What did you change?
    The question is still OUTSIDE of the loop?
    There are more questions inside of the loop.

    I thought there were to be two loops:
    // First loop to process input and save it
    begin loop1
    question about input
    process input
    end loop1

    // Second loop to display input from above
    begin loop2
    question about display
    do requested display
    end loop2
    Last edited by Norm; March 16th, 2014 at 07:48 PM.
    Norm

  5. #50
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    Did I mention that my initial display has to give options
    1) add business contacts
    2) add personal contacts
    3) show contacts --then lead to which contact
    4) exit

    So it should look like:

    1) ask initial questioning (see above)
    2) create loop through 1-2 till complete
    3) upon choosing 3 (ask user which contact) ,loop through till desire selection is complete
    4) display the correct contact
    5) terminate program

  6. #51
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    How can the initial display show option 3 if there are not any contacts entered yet?

    Is the design shown in post#49 wrong?
    Can there be an intermixing of adding contacts and showing contacts?
    Or are they separated as shown? Do all of one BEFORE doing the next.
    Norm

  7. #52
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    I still must be able to give the option to show the unpopulated file and produce it if so desired...... Stupid I know, but none the less it is what is required... It would have been a lot easier the other way around.....

    Ask for contact input, when done ask which for which contact wanted to be shown.

    IN the beginning of the main method, I create both txt files that are going to be written on..... That way I can call an empty file if needed.

  8. #53
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    Then back to one loop with the questions inside and at the top of the loop.
    Norm

  9. #54
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    That is what I have saying .... I still get issues with run-time.

  10. #55
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    You haven't changed the code as I suggested.
    Norm

  11. #56
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    As I run a single While loop at the beginning, I get a continues loop when I select which contact to view.....

    Is this the basic layout?


    ***Ask initial question
    While loop (1-4)
    1)If add Business{some action}
    2)else if add Personal{some action}
    3)else if view contact{(Ask which contact to view)
    While loop(1-3)
    ****1a)if view Business txt file
    **** 2a)else if view Personal txt file
    **** 3a)else view both txt files
    else{quit}

    While NOT 1-4{inform user not valid, and rerun from beginning}

  12. #57
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    Why are there 2 while loops?
    How does the code exit the 2nd loop if the control variable's value isn't changed?
    Norm

  13. #58
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    At the end of the code, I change the user's input to the exit #4

    Example: "enter" is the variable I am using for 1-4 (with 4 being the exit) ....At the end of the code for 1a-3a, I put "enter = 4"; this exits and terminates the program.

    Code:
      if(showCont == 1 )
                  {
                  try {
    			File file = new File("business.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");}
                  
    		//showCont = newShow;
                   enter = 4;
                  
                  }

  14. #59
    Join Date
    Jun 1999
    Location
    SW Missouri
    Posts
    3,450

    Re: Still can not call my Subclass method returns. J2EE

    Why have a while loop if it will only execute once? Why not use an if statement?
    Norm

  15. #60
    Join Date
    Dec 2013
    Posts
    46

    Re: Still can not call my Subclass method returns. J2EE

    I have removed all WHILE loops except at the beginning, now I have an infinite loop when I select to view my contact.
    Code:
    package contacts2;
    
    //import java.util.ArrayList;
    import java.util.Scanner;
    //import java.util.ArrayList;
    import java.io.File;
    //import java.io.FileNotFoundException;
    import java.io.FileWriter;
    import java.io.IOException;
    import java.io.PrintWriter;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import java.util.*;
    //import java.io.*;
    //import java.util.List;
    
    import java.io.BufferedReader;
    import java.io.FileReader;
    
    
    /**
     *
     * @author Drew
     */
    public class Contacts2 {
         
    
        /**
         * @param args the command line arguments
         */
        public static void main(String[] args) 
        {
            //Instantiates the Scanner Class
            Scanner in = new Scanner(System.in);
            
           // readFile r = new readFile();
            System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
            int enter = in.nextInt();
            
         
             
                 
            
            
            final Formatter x;
            final Formatter y;
            try
            {
                x = new Formatter ("business.txt");
                y = new Formatter("personal.txt");
                
                        //System.out.println("You created a file"); Used as a test
            }
            catch(Exception e)
            {
                System.out.println("you have an error");
            }
                
            final int returnEnter;
            
        
     while (enter == 1 || enter == 2 || enter == 3 || enter == 4)
     {
             
           if (enter == 1)
            {
       
              
                   //makes a new Business object
                ContactInfo bCont = new Business();
                  
                  
              //creates a txt file to store data of the business object
               String filename = "business.txt";
               
               //writes to the new business.txt file
                try {
                PrintWriter outputStream = new PrintWriter(new FileWriter(filename, true));
                
                //identifies as hte "Business Contact"
                outputStream.print("Business: ");
                outputStream.print(bCont.firstName()+" ");
                System.out.println();
                outputStream.print(bCont.lastName() + " ");
                System.out.println();
                outputStream.print(bCont.address()+ " ");
                System.out.println();
                 outputStream.print(bCont.email() + " ");
                System.out.println();
                outputStream.print(bCont.phoneNumber() +" ");
                System.out.println();
                outputStream.print(bCont.jobTitle() + " ");
                System.out.println();
                outputStream.print(bCont.org() + " ");
                outputStream.println();
               
                //Close the file stream
                outputStream.close();
                
                //decision to re-enter the loop
               
                
                
                
        
                
            } 
                 catch (IOException ex) {
                    Logger.getLogger(Contacts2.class.getName()).log(Level.SEVERE, null, ex);
                }
                
                 System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
                 int newEnter = in.nextInt();
                 
                 enter = newEnter;
                 
                
              
                 
         
          
                  
              } 
           
              
        
              //Personal Contact
           else if(enter == 2)
              {
                  //creates a new Personal object
                  ContactInfo pCont = new Personal();
                  
                  //freates a new txt file called "personal"
                  
                   String filename = "personal.txt";
                   
                   //wtites to the new personal.txt file
                     try {
                PrintWriter outputStream = new PrintWriter(new FileWriter(filename, true));
                  
                  
                 outputStream.print("Personal: ");
                 outputStream.print(pCont.firstName() + ", ");
                 System.out.println();
                 outputStream.print(pCont.lastName() + ", ");
                 System.out.println();
                 outputStream.print(pCont.address() + ", ");
                 System.out.println();
                 outputStream.print(pCont.phoneNumber() + ", ");
                 System.out.println();
                 outputStream.print(pCont.email() + ", ");
                 System.out.println();
                 outputStream.print(pCont.dob());
                 outputStream.println();
                 
               
                     outputStream.close(); 
                     
                     
                     }
                     catch (IOException ex) {
                    Logger.getLogger(Contacts2.class.getName()).log(Level.SEVERE, null, ex);
                     }
                     System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                    + "\n 3 to display the contacts \n 4 to Quit " );
                 int newEnter = in.nextInt();
                 
                 enter = newEnter;
              }
     
                    
                  //if(enter == 3){
               
        
        
           
                   
              
           else if (enter == 3 )//|| enter == 4)
                //  else if(enter == 3)
             {
                     System.out.println("Press 1 to show the Business Cotact\n"
                          + "Press 2 to show the Personal Conatct\n"
                          + "Press 3 to show both contacts.");
                  int showCont = in.nextInt();   
                  
                  final int newShow = 4;
                  
                  //while(showCont == 1){
                  //while(showCont ==1)//{
                  if(showCont == 1 )
                  {
                  try {
    			File file = new File("business.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");}
                  
    		//showCont = newShow;
                   enter = 4;
                  
                  }
                  //enter =4;
              
                  
                  //else if(showCont == 2 )
                  else if(showCont == 2)
                 // else if(showCont == 2)
                  {
                           try {
    			File file = new File("personal.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");
    		}//showCont = newShow;
                   enter = 4;
                  }
                  //enter  = 4;
                 
                  //while (showCont == 3)
                  //if(showCont == 3)
                  else //if(showCont ==3)
                  {
                      
                      try {
    			File file = new File("business.txt");
    			FileReader fileReader = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");}
                      //showCont = newShow;
                  }
                        try {
    			File file = new File("personal.txt");
    			FileReader fileReader2 = new FileReader(file);
    			BufferedReader bufferedReader = new BufferedReader(fileReader2);
    			StringBuilder stringBuffer = new StringBuilder();
    			String line;
    			while ((line = bufferedReader.readLine()) != null) {
    				stringBuffer.append(line);
    				stringBuffer.append("\n");
    			}
    			fileReader2.close();
    			System.out.println("Contents of file:");
    			System.out.println(stringBuffer.toString());
    		} catch (IOException e) {
                        System.out.println("You have an error that is not priting!!!!");
    		}
              
                  //showCont = newShow;
                        enter = 4;
                  
                  
                  
              }  //while(enter == 3); 
     //}  
                  
              
                       
       
        
          
         
              
        
             //else //(enter ==4)//else
        
     //}
    
     //else 
     
           else if (enter == 4)
             {
                System.out.println("The program has exited... Have a nice day. ");        
               
             }
            
     
    //       else
    // }
     
        else //(enter !=1 && enter == 2 | enter != 3 || enter != 4)
     {
         //do{
     
                System.out.println("You have inputed an invaled entry, please re-enter.");
                System.out.println("Please enter:\n 1 to add a business contact\n 2 to add a personal conatact"
                           + "\n 3 to display the contacts \n 4 to Quit " );
                        int newEnter = in.nextInt();
                        
                        enter = newEnter;
         }//while(enter !=1 || enter != 2 || enter != 3 || enter != 4);
            }
            
       //enter = newEnter;
              
              
          
       }
       
       }
    //2}
                  
    
    //}

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