All Questions
15 questions
0
votes
2
answers
110
views
Won't return object
private ArrayList players = new ArrayList<Player>();
public Player getPlayerByName(String theName){
for(int i = 0; i < players.size(); i++){
String pName = (String) players....
1
vote
0
answers
119
views
After reading list containing objects using ObjectInputStream how to iterate through the list?
I have a binary file having some list where each list has group of similar objects
I am using ObjectInputStream to read the list series one by one
Now, instead of directly printing the list I want to ...
- 1,386
1
vote
1
answer
72
views
Iterating through a list which is an object of a table
public List<AnswerValues> getAllAnswers(Forms fm){
Session sess = getSession();
Criteria crit = sess.createCriteria(FormQuestions.class);
crit.add(Restrictions.eq("fkformId",fm));
...
- 467
-2
votes
2
answers
130
views
How to obtain data and iterate over arraylist returned as an object?
In my app I created an ArrayList in some servlet which was assigned using request.setAttribute() as 'testList'. Then request was forwarded to jsp page.
Inside jsp page I want to retrieve whole ...
0
votes
1
answer
810
views
Is there a way to iterate through a two dimensional ArrayList and also invoke the class methods of the objects?
So I am attempting to iterate through a two dimensional ArrayList in Java. Now I have gotten the iteration portion down, however, I can't seem to invoke methods from the object class.
I have checked ...
- 11
0
votes
3
answers
65
views
How to determine an objects type without iterating through all possible types?
I have a large collection of classes. These classes have similar properity names but with different values. For example, I have Spearmen, and Swordsman. These two classes have the same properity names ...
- 367
-1
votes
5
answers
4k
views
iterate through the objects of a class
I have created this class.
public class UserData {
private int user_Id;
private List<String> disease_List=new LinkedList<String>();
/*Constructor*/
public UserData(int ...
- 473
0
votes
1
answer
3k
views
Dynamically create new objects in java [duplicate]
I want to dynamically create objects of a class using an array.
This is what i have so far:
int[] n = new int[10];
for (int i = 1; i < 5; i++) {
MyClass n[i] = new MyClass();
n[i].setNumber(...
- 1,676
2
votes
4
answers
275
views
Can't reach fields from super class with object
I'm trying to figure out a nice way to iterate and print out the objects inside my ArrayList.
Problem is that i can't seem to reach the fields in which the user is typing the info of the objects (...
- 174
0
votes
2
answers
205
views
Replacing ArrayLists with HashMaps
I am currently working on a project where I am replacing the ArrayLists in my code with HashMaps and I've run into a problem. In this section of my code I am creating a new "Book" from my book class ...
47
votes
6
answers
272k
views
How to iterate through an ArrayList of Objects of ArrayList of Objects?
Using an example:
Let say I have a class call Gun.
I have another class call Bullet.
Class Gun has an ArrayList of Bullet.
To iterate through the Arraylist of Gun ..instead of doing this:
...
- 17.5k
2
votes
1
answer
79
views
Find and delete specific objects from a Set with minimal iteration using Java
I have a set of objects and each object has its own id...
I also have a list of ids, each denoting the id of an object to be removed from the set..
Unfortunately I need the most efficient approach ...
- 83
0
votes
1
answer
277
views
Iterate over HashMap and get "Lowest" Integer of the value in the Object
for (Entry<String, Data> entry : list.entrySet()) {
if(entry.getValue().getRoom() == 1){
if(entry.getValue().getName().equalsIgnoreCase("RED")){
entry....
- 4,355
0
votes
3
answers
779
views
When creating objects through iteration, how do I get a specfic object?
I got an instance variable of type GRect
private GRect brick;
that I create several of, through iteration
private void makeBrickLineX(int x, int y, Color color)
{
for (int i = 0; i < ...
- 2,002
0
votes
3
answers
19k
views
Iterate through list of objects & methods using for loop
The entirety of the code can be found at the bottom of this post, but the only part that really concerns me is,
for(zed = 0; zed<photoes.size(); zed++) {
totesPrice += photoes<zed>.getCost();...
- 31