package  BlackContacts;
 import  java.io.BufferedInputStream;
 import  java.io.BufferedReader;
 import  java.io.FileReader;
 import  java.io.IOException;
 import  java.util.Collections;
 import  java.util.Comparator;
 import  java.util.ArrayList;
 import  java.util.List;
 import  java.util.regex.Pattern;

 public   class  getContacts 
{
     private  BufferedReader in;
     private  List<Contact> contacts;
    
    /** Creates a new instance of ViewContact */
     public  getContacts( String in )  throws  IOException 
    {
         this .in =  new  BufferedReader(  new  FileReader( in ) );
        contacts =  new  ArrayList<Contact>();
    }
    
     public  List<Contact> get()  throws  IOException 
    {
        String s =  null ;
        Pattern p = Pattern.compile("\\|");
        
         try  
        {
             while ( ( s = in.readLine() ) !=  null  ) 
            {
                String[] contact = p.split( s );
                contacts.add(  new  Contact( contact[ 0 ], contact[ 1 ], contact[ 2 ], contact[ 3 ] ) );
            }
        }
         finally  
        {
            in.close();
        }
        
        Collections.sort( contacts,  new  sortContacts() );
        
         return  contacts;
    }

    // Класс сортировки контактов
     class  sortContacts  implements  Comparator 
    {       
         public   int  compare(Object o1, Object o2) 
        {
             return  ((Contact) o1).name().compareTo( ((Contact) o2).name() );
        }
    }
}

 package  BlackContacts;

 public   class  Contact {
     private  String name;
     private  String lastName;
     private  String phoneNumber;
     private  String email;
    
    /** Creates a new instance of Contact */
     public  Contact( String name, String lastName, String phoneNumber, String email ) {
         this .name = name;
         this .lastName = lastName;
         this .phoneNumber = phoneNumber;
         this .email = email;
    }
    
     public  String name() {
         return  name;
    }
    
     public  String lastName() {
         return  lastName;
    }
    
     public  String phoneNumber() {
         return  phoneNumber;
    }
    
     public  String email() {
         return  email;
    }
}

init:
deps-jar:
Compiling  4  source files to D:\dev\java\projects\BlackContacts\build\classes
D:\dev\java\projects\BlackContacts\src\getContacts.java: 42 : warning: [unchecked] unchecked conversion
found   : BlackContacts.getContacts.sortContacts
required: java.util.Comparator<?  super  BlackContacts.Contact>
        Collections.sort( contacts,  new  sortContacts() );
D:\dev\java\projects\BlackContacts\src\getContacts.java: 42 : warning: [unchecked] unchecked method invocation: <T>sort(java.util.List<T>,java.util.Comparator<?  super  T>) in java.util.Collections is applied to (java.util.List<BlackContacts.Contact>,BlackContacts.getContacts.sortContacts)
        Collections.sort( contacts,  new  sortContacts() );
 2  warnings
compile:
run:
BUILD SUCCESSFUL (total time:  0  seconds)

    // Класс сортировки контактов
     class  SortContacts  implements  Comparator<Contact> 
    {       
         public   int  compare(Contact o1, Contact o2) 
        {
             return  o1.name().compareTo( o2.name() );
        }
    }