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import java.io.File; import java.util.ArrayList; import java.util.Scanner; public class Assignment08  {    public static void main(String[] args) throws Exception     {        File inputData = new File("input05.txt");        Scanner input = new Scanner(inputData);          int totalNumber = input.nextInt();        Friend.friends = new Friend[totalNumber];        input.nextLine();

import java.io.File; import java.util.ArrayList; import java.util.Scanner; public class Assignment08  {    public static void main(String[] args) throws Exception     {        File inputData = new File("input05.txt");        Scanner input = new Scanner(inputData);          int totalNumber = input.nextInt();        Friend.friends = new Friend[totalNumber];        input.nextLine();

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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How do I match the output?
Code:
 
import java.io.File;
import java.util.ArrayList;
import java.util.Scanner;
public class Assignment08 
{
   public static void main(String[] args) throws Exception 
   {
       File inputData = new File("input05.txt");
       Scanner input = new Scanner(inputData);
 
       int totalNumber = input.nextInt();
       Friend.friends = new Friend[totalNumber];
       input.nextLine();
       for (int i = 0; i < totalNumber; i++) 
       {
           String name = input.nextLine();
           String phone = input.nextLine();
           String age = input.nextLine();
           int ageNum = Integer.parseInt(age);
           Friend.friends[i] = new Friend(name, phone, ageNum);
       }
       printContacts(Friend.friends);
       Friend.showTotalFriendAge();
 
       ManageDuplicate(Friend.friends);
 
       printContacts(Friend.friends);
       Friend.showTotalFriendAge();
   }
 
   public static void printContacts(Friend[] contacts) 
   {
       System.out.println("Contacts (" + contacts.length + ")");
       System.out.println("===================");
       for (Friend friend : contacts)
       {
           System.out.println(friend);
       }
       System.out.println();
   }
 
   public static void ManageDuplicate(Friend[] contacts) 
   {
       ArrayList<Friend> duplicates = new ArrayList<>();
       for (int i = 0; i < contacts.length - 1; i++) 
       {
           for (int j = i + 1; j < contacts.length; j++) 
           {
               if (contacts[i].equals(contacts[j])) 
               {
                   duplicates.add(contacts[i]);
               }
           }
       }
 
       if (!duplicates.isEmpty()) 
       {
           System.out.println("Duplicate contact detected:");
           for (int i = 0; i < duplicates.size(); i++) 
           {
               System.out.println("(" + i + ")" + duplicates.get(i).getName());
           }
           System.out.println();
 
           // Modify duplicate entries and set age to 0
           for (Friend duplicate : duplicates) 
           {
               duplicate.setAge(0);
           }
       }
   }
}
 
 
public class Friend 
{
private String name;
private String phone;
private int age;
 
public static Friend[] friends;    //array
 
 
 
public String toString()
{
return String.format("Name: %-20sPhone: %-15sAge: %d", name, phone, age);
}
public Friend(String name)
{
this.name = name;
 
}
public Friend(String name, String phone)
{
this.name = name;
this.phone = phone;
}
public Friend(String name, String phone, int age)
{
this.age = age;
this.name = name;
this.phone = phone;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public boolean equals(Friend dest) 
{
if(this.name.equals(dest.name) && this.phone.equals(dest.phone) && this.age == dest.age)
{
return true;
}
else
{
return false;
}
 
}
public static void showTotalFriendAge()
{
int totalAge = 0;
System.out.print("Total Friends Age:(");
for(int i = 0; i < friends.length; i++)
{
if(i < friends.length - 1)
{
System.out.print(friends[i].age + ",");
}
else
{
System.out.print(friends[i].age + "");
}
totalAge += friends[i].age;
}
System.out.print(") Total: " + totalAge);
 
}
 
public static int getNumFriends()
{
return 0;
}
}
Contacts (12) ==== Name: Albert Zoe Name: Albert Zoe Name: Cat Xiver Name: Dan Woow Name: Esther Uno Name: Frankie Uion Name: Albert Zoe Name: Gab Xvy Name: Henrik Que Name: Albert Zoe Name: Henrik Que Name: Henrik Que Total Friends Age: (10,44,20,2,16,10,10,12,11,10,11,12) Total: 168 Duplicate contact detected: (0)Albert Zoe and (6) Albert Zoe Duplicate contact detected: (0)Albert Zoe and (9)Albert Zoe Duplicate contact detected: (8)Henrik Que and (10) Henrik Que Contacts (12) ======== ====== Phone: 8581234567 Phone: 8581234567 Phone: 6193456789 Phone: 8584567891 Phone: 8584567890 Phone: 4294567123 Phone: 8581234567 Phone: 6184567234 Phone: 7604567345 Phone: 8581234567 Phone: 7604567345 Phone: 7604567345 Age: 10 Age: 44 Age: 20 Age: 2 Age: 16 Age: 10 Age: 10 Age: 12 Age: 11 Age: 10 Age: 11 Age: 12 Name: Albert Zoe Name: Albert Zoe Name: Cat Xiver Name: Dan Woow Name: Esther Uno Name: Frankie Uion Name: Albert Zoe (1) Name: Gab Xvy Name: Henrik Que Name: Albert Zoe(2) Name: Henrik Que(3) Name: Henrik Que Total Friends Age: (44,20,2,16,10,12,10,11,12,0,0,0) Total: 137 Phone: 8581234567 Phone: 8581234567 Phone: 6193456789 Phone: 8584567891 Phone: 8584567890 Phone: 4294567123 Phone: 8581234567(1) Phone: 6184567234 Phone: 7604567345 Phone: Age: 11 8581234567(2) Age: 0 Phone: 7604567345(3) Age: 0 Phone: 7604567345 Age: 12 Age: 10 Age: 44 Age: 20 Age: 2 Age: 16 Age: 10 Age: 0 Age: 12
Transcribed Image Text:Contacts (12) ==== Name: Albert Zoe Name: Albert Zoe Name: Cat Xiver Name: Dan Woow Name: Esther Uno Name: Frankie Uion Name: Albert Zoe Name: Gab Xvy Name: Henrik Que Name: Albert Zoe Name: Henrik Que Name: Henrik Que Total Friends Age: (10,44,20,2,16,10,10,12,11,10,11,12) Total: 168 Duplicate contact detected: (0)Albert Zoe and (6) Albert Zoe Duplicate contact detected: (0)Albert Zoe and (9)Albert Zoe Duplicate contact detected: (8)Henrik Que and (10) Henrik Que Contacts (12) ======== ====== Phone: 8581234567 Phone: 8581234567 Phone: 6193456789 Phone: 8584567891 Phone: 8584567890 Phone: 4294567123 Phone: 8581234567 Phone: 6184567234 Phone: 7604567345 Phone: 8581234567 Phone: 7604567345 Phone: 7604567345 Age: 10 Age: 44 Age: 20 Age: 2 Age: 16 Age: 10 Age: 10 Age: 12 Age: 11 Age: 10 Age: 11 Age: 12 Name: Albert Zoe Name: Albert Zoe Name: Cat Xiver Name: Dan Woow Name: Esther Uno Name: Frankie Uion Name: Albert Zoe (1) Name: Gab Xvy Name: Henrik Que Name: Albert Zoe(2) Name: Henrik Que(3) Name: Henrik Que Total Friends Age: (44,20,2,16,10,12,10,11,12,0,0,0) Total: 137 Phone: 8581234567 Phone: 8581234567 Phone: 6193456789 Phone: 8584567891 Phone: 8584567890 Phone: 4294567123 Phone: 8581234567(1) Phone: 6184567234 Phone: 7604567345 Phone: Age: 11 8581234567(2) Age: 0 Phone: 7604567345(3) Age: 0 Phone: 7604567345 Age: 12 Age: 10 Age: 44 Age: 20 Age: 2 Age: 16 Age: 10 Age: 0 Age: 12
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