rolodex-rsm-p-htm


                                    Print Format Report

     File: Contact.java                                                       
     Date: Sat Mar 07 22:16:36 2013
     ________________________________________________________________________________

         1| package rolodex;
         2| 
         3| import java.io.BufferedReader;
         4| import java.io.InputStreamReader;
         5| import java.io.IOException;
         6| import java.io.Serializable;
         7| 
         8| public class Contact implements Serializable
         9| {
        10|   private String name = null;
        11|   static private boolean debug;
        12|   
        13|   static
        14|   {
        15|     String sdebug = System.getProperty( "debug" );
        16|     if ( sdebug != null && sdebug.equalsIgnoreCase( "true" ) )
        17|     {
        18|       debug = true;
        19|     }
        20|     else
        21|     {
        22|       debug = false;
        23|     }
        24|   }
        25|   
        26|   public Contact()
        27|   {
        28|     setName();
        29|   }
        30| 
        31|   public Contact( String s )
        32|   {
        33|     name = s;
        34|   }
        35| 
        36|   public void setName()
        37|   {
        38|     while (true)
        39|     {
        40|       try
        41|       {
        42|         BufferedReader input = new BufferedReader( new InputStreamReader(
          | System.in));
        43|         System.out.print( "Enter Contact Name: " );
        44|         name = input.readLine();
        45|         if ( debug )
        46|         {
        47|           IOException testexcep = new IOException ( "Test Readline" );
        48|           throw testexcep; 
        49|         }
        50|         break;
        51|       }  
        52|       catch ( IOException ioe )
        53|       {
        54|         System.out.println ( ioe.toString() );
        55|         ioe.printStackTrace();
        56|         if ( debug )
        57|         {
        58|           break; 
        59|         }       
        60|       }             
        61|     }
        62|   }
        63| 
        64|   public String getName()
        65|   {
        66|     return(name);
        67|   }
        68| 
        69|   public void show()
        70|   {
        71|     System.out.println ( "Contact: " + name );
        72|   }
        73| 
        74|   public String toString ()
        75|   {
        76|     return ( show() );
        77|   }
        78| 
        79|   static public void main ( String args[] )
        80|   {
        81|     Contact mycontact = new Contact();
        82|     mycontact.show();
        83|   }
        84| }

     ________________________________________________________________________________


                                    Print Format Report
     File: Rolodex.java                                                       
     Date: Sat Mar 07 22:16:36 2013
     ________________________________________________________________________________

         1| 
         2| package rolodex;
         3| import rolodex.Contact;
         4| import java.util.LinkedList;
         5| import java.io.FileInputStream;
         6| import java.io.FileOutputStream;
         7| import java.io.File;
         8| import java.io.ObjectInputStream;
         9| import java.io.ObjectOutputStream;
        10| 
        11| public class Rolodex
        12| {
        13| 
        14|   private LinkedList rololist = new LinkedList();
        15|   
        16|   public Rolodex()
        17|   {
        18|     System.out.println ( "Rolodex" );
        19|   } 
        20| 
        21|   public boolean open ( String datafilename )
        22|   {
        23|     System.out.println ( "Open Rolodex" );
        24| 
        25|     FileInputStream inputfile = null;
        26|     ObjectInputStream ois = null;
        27| 
        28|     File f = new File ( datafilename );
        29|     if ( f.exists() )
        30|     {
        31|       // open the input file stream
        32|       if ( f.canRead() )
        33|       {
        34|         try
        35|         {
        36|           inputfile = new FileInputStream ( f );
        37|         }
        38|         catch ( Exception e )
        39|         {
        40|          System.err.println ( "Cannot Open or Currupted File: " + datafil
          | ename );
        41|          return(false);            
        42|         }
        43|       }
        44|       else
        45|       {
        46|         System.err.println ( "Cannot Read From File: " + datafilename );
        47|         return(false);
        48|       }
        49|       
        50|       // read from the file to the list
        51|       try
        52|       {
        53|         ois = new ObjectInputStream ( inputfile );
        54|       }
        55|       catch ( Exception e )
        56|       {
        57|         System.err.println ( "Cannot open input stream for object read." 
          | );
        58|         return(false);       
        59|       }
        60| 
        61|       Object testo = null;
        62|       try 
        63|       {
        64|         testo = ois.readObject();
        65|       }
        66|       catch ( Exception e )
        67|       {
        68|         System.err.println ( "Cannot read Rolodex List" );
        69|         return(false);       
        70|       }
        71| 
        72|       if ( testo instanceof LinkedList )
        73|       {
        74|         rololist = (LinkedList)testo;
        75|       }
        76|       System.out.println ( "Rolodex " + datafilename + " Opened" );
        77|     }    
        78|     return(true);
        79|   }
        80| 
        81|   public boolean close( String datafilename )
        82|   {
        83|     System.out.println ( "Close Rolodex" );
        84| 
        85|     FileOutputStream outputfile = null;
        86|     ObjectOutputStream oos = null;
        87| 
        88|     File f = new File ( datafilename );
        89|     try
        90|     {
        91|       outputfile = new FileOutputStream ( f );
        92|     }
        93|     catch ( Exception e )
        94|     {
        95|       System.err.println ( "Cannot Create File: " + datafilename );
        96|       return(false);            
        97|     }
        98| 
        99|     // write list
       100|     try
       101|     {
       102|       oos = new ObjectOutputStream ( outputfile );
       103|     }
       104|     catch ( Exception e )
       105|     {
       106|       System.err.println ( "Cannot open output stream for object write." 
          | );
       107|       return(false);       
       108|     }
       109| 
       110|     try 
       111|     {
       112|       oos.writeObject( (Object)rololist );
       113|     }
       114|     catch ( Exception e )
       115|     {
       116|       System.err.println ( "Cannot write Rolodex List" );
       117|       return(false);       
       118|     }
       119|     System.out.println ( "Rolodex " + datafilename + " Closed" );
       120|     return(true);
       121|   }
       122| 
       123|   public void add(Contact c)
       124|   {
       125|     rololist.add(c);
       126|   }
       127| 
       128|   public int addContacts()
       129|   {
       130|     int newcontacts = 0;
       131|     while (true)
       132|     {
       133|       Contact newc = new Contact();
       134|       if ( newc.getName().length() == 0 )
       135|       {
       136|         break;
       137|       }
       138|       else
       139|       {
       140|         add(newc);
       141|         newcontacts++;
       142|       }
       143|     }
       144|     return(newcontacts);
       145|   }
       146| 
       147|   public void show()
       148|   {
       149|     for ( int i=0; i<rololist.size(); i++ )
       150|     {
       151|       ((Contact)rololist.get(i)).show();
       152|     }
       153|   }
       154| 
       155|   static public void main ( String args[] )
       156|   {
       157|     Rolodex rolo = new Rolodex();
       158| 
       159|     if ( args.length < 1 )
       160|     {
       161|       System.err.println ( "Usage: java rolodex.Rolodex datafile" );
       162|       System.exit(1);
       163|     }
       164|     else
       165|     {
       166|       if ( rolo.open(args[0]) == false )
       167|       {
       168|         System.err.println ( "Error: Failed to open Rolodex" );  
       169|         System.exit(1);
       170|       }
       171|     }
       172| 
       173|     rolo.show();
       174|     rolo.addContacts();
       175|     rolo.show();
       176|     rolo.close(args[0]);
       177| 
       178|   }
       179| }
       180| 
       181| 

     ________________________________________________________________________________

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