My Equal method is not working in array person!!! help me pls

Question

My assignment is to create an application program that declares an array of 100 components of type person. add a person into the array and (CHECK DUPLICATE ENTRIES ARE NOT ALLOWED)
my code is(this is in another class):
public Boolean equals(Person p1){
          return(name == p1.name&&address == p1.address&&telephoneNo == p1.telephoneNo&&email == p1.email);
Become(this is in my main class):
public static boolean isEquals(Person p1)
          if(Person.getPersonCount()==1)
               return false;
          for(int i=0;i<Person.getPersonCount()-1;i++)
               if(p1.equals(p))
                    return true;
          return false;
my output code is:
public static void addPerson()
          String name, address, telephoneNo, email;
          int count=Person.getPersonCount();
          int numberPerson = Integer.parseInt(JOptionPane.showInputDialog(null,
               "Enter number of person you want to add in (1 to 100):","Person Adding Table",
               JOptionPane.QUESTION_MESSAGE));
          for(int i=0;i<numberPerson;i++)
               name = JOptionPane.showInputDialog(null,"Please enter a person name:","Person No."+(i+1+count),JOptionPane.QUESTION_MESSAGE);
               address = JOptionPane.showInputDialog(null,"Please enter a person address:","Person No."+(i+1+count),JOptionPane.QUESTION_MESSAGE);
               telephoneNo = JOptionPane.showInputDialog(null,"Please enter a person telephone number:","Person No."+(i+1+count),JOptionPane.QUESTION_MESSAGE);
               email = JOptionPane.showInputDialog(null,"Please enter a person email address:","Person No."+(i+1+count),JOptionPane.QUESTION_MESSAGE);
               p[i+count]=new Person(name,address,telephoneNo,email);
               if(isEquals(p[i+count]))
                    System.out.println("Please take note! Your person details have duplicate data...");
          System.out.println("You has added "+numberPerson+" details of person!!!");

Answer 1

Don't compare Strings with ==. Use the equals() method.
if (string1.equals(string2))Using == checks if they are the exact same object (think of it as the same location in memory). The equals() method checks if their contents are equal...just like you're trying to set up for your Person class. You want to see if the various fields of a Person object are the same...not if they are in fact the same object.