Search DaniWeb - arraylist

Re: Bouncing Balls: Creating a new ball when two balls collide 3 Weeks Ago by toneewa … java.awt.Graphics; import java.awt.Color; import java.util.ArrayList; import java.util.Arrays; public class BallPanel extends JPanel implements… final int delay = 16; protected Timer timer; ArrayList<Ball> b = new ArrayList<>(); public static int collisionCount = 0; private… Re: Bouncing Balls: Creating a new ball when two balls collide 3 Weeks Ago by toneewa … java.awt.Graphics; import java.awt.Color; import java.util.ArrayList; import java.util.Arrays; public class BallPanel extends JPanel implements… final int delay = 1; protected Timer timer; ArrayList<Ball> b = new ArrayList<>(); public static long collisionCount = 0; private… Re: Bouncing Balls: Creating a new ball when two balls collide 2 Weeks Ago by jprog1000 Hello, Thank you again so much! All your additions are clear, but it seems like whenever two balls collide, more than one ball is added to the arraylist and painted. Any way to have just one ball added to the panel for every collision? Have some kind of a toggle flag in paintcomponent? Regards Re: Download multiple files in single zip and render for download 2 Months Ago by Sachin_41 what is _response in this? Is this some library? ArrayList: Semantic Error 1 Year Ago by Shephard_1 …> databas = new ArrayList<MArry>(); //Add data into the databas databas.add(… output I'm getting is the memory address of the ArrayList */ Re: ArrayList 9 Years Ago by Schol-R-LEA …to declare an `ArrayList` of `ArrayList` of the type being stored: ArrayList<ArrayList<String> > data = new ArrayList<ArrayList<String>… pets) { this.name = name; this.age = age; this.pets = new ArrayList<String>(); for (String pet: pets) { this.pets.add… ArrayList help 12 Years Ago by ilovejava … private E[] theArray; private int size; private int capacity; public ArrayList(int initialCapacity) { this.size = 10; this.capacity = initialCapacity;… theArray = (E[]) new Object[initialCapacity]; } public ArrayList() { this(1024); } public E get(int index) throws Exception … Re: ArrayList Help 17 Years Ago by arunjain_in …of access modifiers. Also objects can be added to arraylist like wrapper, string or custom objects along with …=#7f0055][B]import[/B][/COLOR][COLOR=#000000] java.util.ArrayList;[/COLOR] [B][COLOR=#7f0055]public[/COLOR][/B][B][COLOR…Java and am having some difficulty with implementing an arraylist. I have some classes that contain variables and … ArrayList get() 16 Years Ago by vladdy19 I'm writing a code that is using ArrayList this is the part that is giving me the error. … them all. [CODE] ArrayList <Student> studentList = new ArrayList <Student>(); ArrayList <Course> courseList = new ArrayList <Course>(); if… ArrayList [Help] 11 Years Ago by KRUX17 …no sutiable method found for add(int) method java.util.ArrayList.add(int,Order)... And how would I create a … my code: public class OrderBook { ArrayList<Order> Orders; public OrderBook() { Orders = new ArrayList<Order>(); } public void … ArrayList 9 Years Ago by chubbyy.putto I know how made an arraylist but i dont know how make an arraylist inside an arraylist? let says: Alex age is 31 alex and age is gonna be in one arraylist alex 31 burren java burren and java is alex dogs; how can i store burren and java under alex.. The arraylist will have many userinput. Re: ArrayList [Help] 11 Years Ago by KRUX17 …. import java.util.ArrayList; public class OrderBook { ArrayList<Order> Orders;// DECLARE ArrayList<Order> …FIELD HERE public OrderBook() { Orders = new ArrayList<Order>(); } public void addNewOrder(String name,… Re: ArrayList [Help] 11 Years Ago by NormR1 … them here. > an example ArrayList<String> alS = new ArrayList<String>(); // define an ArrayList that holds Strings alS.add…("A String"); // add a String to the ArrayList alS.add(new Point()); // this will give an error because… Re: ArrayList 9 Years Ago by zolymo …quot;"; private List<Dog> dogs = new ArrayList<>(); public Person(){ } /** * @return the …name; } } Class Daniweb: package daniweb; import java.util.ArrayList; import java.util.Iterator; import java.util.List; /** … Re: ArrayList 14 Years Ago by KimJack … snippet of code: [CODE] Array<Character> letters = new ArrayList<Character>(); char[] characters = new char[row * col]; ... public…;='z'; ch++) { letters.add(ch); } //shuffle Collections.shuffle(letters); //convert arrayList to array [COLOR="Red"]letters.toArray(characters);[/COLOR… Re: ArrayList [Help] 11 Years Ago by JamesCherrill You have defined the ArrayList as an ArrayList of Orders. That means the only thing you can add … info, then you can add that new Order to the ArrayList. Re: ArrayList Help 17 Years Ago by 2mdennis …Then i have the class that contains the arraylist: import java.util.ArrayList; public class arrayList { public static void main(String[] args) …{ List<Details> list = new ArrayList<Details>(); Details a = new Details(); list.add… Re: ArrayList help 12 Years Ago by JamesCherrill In a classic array list (eg java.util.ArrayList) you have a [I]size [/I]which is the number … Re: ArrayList help 12 Years Ago by stultuske … array with a value that could be set in the ArrayList class and copy over the values of the initial array… Re: ArrayList help 12 Years Ago by JamesCherrill … implementation allows null values to be added (like java.util.ArrayList does). The algorithm for remove is valid, but could be… Re: ArrayList 9 Years Ago by necrovore … part of your question can also be done using an arraylist. Only your class structure will change to something like this…: Class Person { string name; string sex; ArrayList<string> Dog_names; } Obvoisly arraylist has its pros and cons, when to use… Re: ArrayList 9 Years Ago by stultuske and why do you assume you need an arraylist for this ? just create instance variables. this might be an arraylist, but it might just as well be an array, depending on whether or not you know how many dogs alex has. if you don't know how to create instance variables, don't start using arraylists ArrayList Help 17 Years Ago by 2mdennis … to Java and am having some difficulty with implementing an arraylist. I have some classes that contain variables and i have… a new class that contains my arraylist. I would like to know how i would get the… variables from the other classes into the arraylist in the new class. I know that you would use… Re: ArrayList Help 17 Years Ago by arunjain_in …[COLOR=black]import[/COLOR][COLOR=black] java.util.ArrayList;[/COLOR] [COLOR=black]import[/COLOR][COLOR=black]…black]public[/COLOR][COLOR=black] class[/COLOR][COLOR=black] arrayList [/COLOR] [COLOR=black]{[/COLOR] [COLOR=black]public…list = [/COLOR][COLOR=black]new[/COLOR][COLOR=black] ArrayList();[/COLOR] [COLOR=black][/COLOR] [COLOR=black]Details a… ArrayList 15 Years Ago by efus … this: [code] interface Dictionary { public boolean hasWord(String word); public ArrayList<String> suggestions( String word ); public void addWord( String… it? If I try to use it as a normal arraylist, I get the error that the class implementing the interface… Re: ArrayList 15 Years Ago by efus So I need to do both this: [code] ArrayList suggestions = new ArrayList(); [/code] and this: [code] public ArrayList<String> suggestions( String word ) { return suggestions; } [/code] ? Re: ArrayList 15 Years Ago by stultuske [QUOTE=efus;718638]So I need to do both this: [code] ArrayList suggestions = new ArrayList(); [/code] and this: [code] public ArrayList<String> suggestions( String word ) { return suggestions; } [/code] ?[/QUOTE] when implementing an interface, you need to implement all of it's methods. ArrayList 14 Years Ago by KimJack Hi All, Is it possible to convert an arraylist of chars to an array? For example: ArrayList<Character> array = new ArrayList<Character>(); Can this be converted to an array of chars. I have tried using the toArray method but it is not working. Does anyone have any suggestions? Thanks, Kimjack ArrayList 13 Years Ago by wolfje … Step Three : If used return False (and write value to arraylist), else return true (dont' write the value to the… arraylist). I thought this would be best if I create an arrayList. But how do i go… Re: ArrayList 13 Years Ago by Geekitygeek …more than x times", do you mean in the arraylist? If you are only allowing values to be stored if… this check is redundant (unless you plan to populate the arraylist with existing that may contain duplicates). Also, at step 2… single datatype then i'd recommend the List over the ArrayList. The following use a List of integers. The FindAll …