All Questions
9
questions
1
vote
5
answers
1k
views
How to type-cast a nested Array of Objects into a nested List of Strings
Cannot create nested ArrayList from Array in Java
I am trying to create a nested list from an array.
But I have a problem while converting Object to String:
Object[] array = new Object[] {
...
user18588618
2
votes
3
answers
2k
views
Special Scenario : java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String;
I am simply trying to remove below exception.
java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String;
Please help me out here.
I need to cast it as List<String[]>....
-2
votes
1
answer
71
views
How to fix unchecked type cast [duplicate]
I am having trouble with unchecked casting. I know this happens because T is an Object but not every Object is a T. My question is how would I fix this to implement T in ArrayList<T> without ...
1
vote
2
answers
2k
views
Java can't get object to cast from file to arraylist
I'm trying to load an object in from a file. I first create the file by saving an object to it. If I save only one object to a file I can get it loaded in by casting the object into a variable stead ...
- 99
1
vote
3
answers
2k
views
Can't convert from Object to List, but it already is a List?
I can't seem to wrap my head around why the compiler is telling me that is can't convert from Object to List but it already is a List. Could someone point out what I'm not seeing?
import java.util....
0
votes
1
answer
35
views
adding in a ArrayList by casting an Object, from table of Objects, into double
Why the cast (double) doesn't work ? I nead to add doubles to my ArrayList.
import java.util.ArrayList;
import java.util.ListIterator;
public class Vecteur extends ArrayList implements Cloneable{
...
- 161
2
votes
4
answers
121
views
How can I remove an Item from an ArrayList given the itemNum?
I want to remove the Item given the ItemNo that the user will enter. how do I check if there exists an item with this itemNo first? and how would I then remove it? Below is what I have so far, do I ...
- 173
9
votes
4
answers
10k
views
Remove an object from an ArrayList given only one attribute
I have an ArrayList of Items and I want to be able remove one Item from the list by entering only one Item attribute, for example its number (int ItemNumber). I also wanna do the same when I check ...
- 173
1
vote
3
answers
2k
views
How to fix incompatible types with array of objects in list
I have a problem with the code below. Compiler says incompatible types, java.lang.object[][] required but found java.lang.object[].
Anyone have an idea why this is? I've found some about generics ...
- 1,909