Converting an array into Array List

 

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  • Create ArrayList from array 32 answers

    • Your commented code is perfectly valid for initiliazing the arrayList. 

    ArrayList<Property> property_list = new ArrayList<Property>();

    In java 7 or later you don't need to specify the second Property: 

    ArrayList<Property> property_list = new ArrayList<>();

    Unlike the java Array you don't use bracket notation to access your variables you use .get(int index): 

    ppty.property_list.get(count)

    To add a value you use .add(Object item); 

    ppty.property_list.add(new Property());

    And you don't need to remember the size of ArrayList by storing it in a variable. The ArrayList has the .size() method which returns the number of elements in it.

    Extra tips:

  • Here you can find extra methods the ArrayList has https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html
  • You have setters and getters in your Property object. You could set the member variables to private and use them.

  • You should replace that ppty method with the constructor method like so: 

    
public Property(int streetno,String streetname,
            String suburb,
            int postalcode,String contactperson,
            String office,int phonenumber,
            String openTime,String propertytype,
            double price, String date){
                this.StreetNumber = streetno;
        this.StreetName=streetname;
        this.Suburb=suburb;
        this.PostalCode=postalcode;
        this.ContactPerson=contactperson;
        this.PhoneNumber=phonenumber;
        this.Office=office;
        this.OpenTime=openTime;
        this.PropertyType=propertytype;
        this.PropertyPrice=price;
        this.Date = date;
    


    }

  • This property_list should not be inside your Property object. This is something you should handle outside the object. For example in your public void displayMenuPanel() you could say ArrayList<Property> properties = new ArrayList<>() . If you put the list inside the object then it is tied with that object. If the object goes, the list goes.
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