Beginner, be kind.
Whenever I add to the arraylist through the "Add Person", it overwrites the previous entry. So when I run sort, I then get two of the exact same entries which is whichever was typed in last. How do I fix this? What do I do?
Here is my class file:
import java.util.Calendar;
import java.util.Date;
import java.text.*;
public class Person implements Comparable {
private static int totalNumber;
public static int getTotal() {
// Returns total number of employees
return totalNumber;
}
private String fName;
private String lName;
private Date lastModified;
private String address;
private String city;
private String state;
private String zip;
private String phone;
public Person(String fName, String lName, String address, String city,
String state, String zip, String phone) {
this.fName = fName;
this.lName = lName;
this.address = address;
this.city = city;
this.state = state;
this.zip = zip;
this.phone = phone;
Calendar calobj = Calendar.getInstance();
this.lastModified = calobj.getTime();
}
public String getfName() {
return this.fName;
}
public void setfName(String fName) {
this.fName = fName;
}
public String getlName() {
return this.lName;
}
public void setlName(String lName) {
this.lName = lName;
}
public Date getLastModified() {
return this.lastModified;
}
public void setLastModified(Date lastModified) {
this.lastModified = lastModified;
}
public String getAddress() {
return this.address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCity() {
return this.city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return this.state;
}
public void setState(String state) {
this.state = state;
}
public String getZip() {
return this.zip;
}
public void setZip(String zip) {
this.zip = zip;
}
public String getPhone() {
return this.phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
@Override
public String toString() {
DateFormat df = new SimpleDateFormat("dd/MM/yy HH:mm:ss");
return "\n First Name= " + fName + "\n Last Name= " + lName
+ "\n Address= " + address + "\n City= " + city + "\n State= "
+ state + "\n Zip= " + zip + "\n Phone= " + phone
+ "\n Last Modified= " + df.format(lastModified);
}
@Override
public int compareTo(Object other) {
// TODO Auto-generated method stub
return this.lName.compareToIgnoreCase(((Person) other).lName);
}
}
Here is my test file:
import java.util.*;
public class testAddressBook {
public static void main(String[] args) {
// TODO Auto-generated method stub
ArrayList<Person> addressBook = new ArrayList<Person>();
Person newPerson = new Person(null, null, null, null, null, null, null);
@SuppressWarnings("resource")
Scanner sc = new Scanner(System.in);
boolean switcher = true;
do {
System.out.println("\n\tAddress Book Menu");
System.out.println("\n\t\tEnter A to (A)dd Person ");
System.out.println("\t\tEnter D to (D)elete Person");
System.out.println("\t\tEnter M to (M)odify Person");
System.out.println("\t\tEnter S to (S)earch Address Book ");
System.out.println("\t\tEnter L to (L)ist ALL (sorted) ");
System.out.println("\t\tEnter Q to Quit");
System.out.print("\n\tPlease enter your choice: ");
char choice = sc.nextLine().toUpperCase().charAt(0);
while ((choice != 'A') && (choice != 'D') && (choice != 'M')
&& (choice != 'S') && (choice != 'L') && (choice != 'Q')) {
System.out
.println("Invalid choice! Please select (A)dd, (D)elete, (M)odify, (S)earch, (L)ist or (Q)uit: ");
choice = sc.nextLine().toUpperCase().charAt(0);
}
switch (choice) {
case 'A':
System.out.println("\nTo add a person, follow the prompts.");
System.out.print("\nEnter First Name: ");
newPerson.setfName(sc.nextLine());
System.out.print("\nEnter Last Name: ");
newPerson.setlName(sc.nextLine());
System.out.print("Enter Address: ");
newPerson.setAddress(sc.nextLine());
System.out.print("Enter City: ");
newPerson.setCity(sc.nextLine());
System.out.print("Enter State: ");
newPerson.setState(sc.nextLine());
System.out.print("Enter Zip: ");
newPerson.setZip(sc.nextLine());
System.out.print("Enter Phone Number: ");
newPerson.setPhone(sc.nextLine());
addressBook.add(newPerson);
System.out
.println("\nYou have successfully added a new person!");
break;
case 'D':
break;
case 'M':
break;
case 'S':
Collections.sort(addressBook);
for (int i = 0; i < addressBook.size(); i++) {
System.out.println(addressBook.get(i));
}
System.out.println();
break;
case 'L':
break;
case 'Q':
switcher = false;
System.exit(0);
break;
default:
}
} while (switcher != false);
}
}
