All Questions
8
questions
1
vote
1
answer
309
views
Do inherited methods use the visibility, methods and attributes of the superclass or subclass?
What I assume is that an inherited method will, by standard, use the methods and attributes of the class whose object is used to execute that method.
Here's an example for my question, it's from a ...
- 15
0
votes
1
answer
46
views
Calling JFrame from separate class
I am using Intellij IDEA 2017. I am learning how to use JFrames, and am trying to create a basic GUI.
I am trying to create two JFrames in separate classes, and call them from the Main class.
What I ...
-2
votes
1
answer
58
views
In Java, what do you call a class with a private constructor or many private constructors? [closed]
What would it mean if a class had only private
constructors?
Can you name such a class?
- 93
3
votes
3
answers
69
views
Method nonvisibility of same instanceof but differing class
I have something like the below:
Item var;
Depending on user input, it will be initialized as a different class:
if (/*user input*/ == 1) {
var = new Item();
} else {
var = new Truck();
}
...
- 3,513
-4
votes
1
answer
5k
views
The final local variable "name" cannot be assigned, since it is defined in an enclosing type
I have this class:
class Tester{
final String rigaFile=riga;
final BufferedReader r=new BufferedReader(reader2);
fr.getList().addListSelectionListener(new ListSelectionListener() {
...
-6
votes
3
answers
175
views
Private class property visible
How is it possible that private itemset property is visible in a copy constructor?
import java.util.List;
import java.util.ArrayList;
public class Itemset {
private List<Integer> itemset =...
- 4,516
0
votes
3
answers
100
views
Java class design issue
Here is a class design: http://pastebin.com/1RSdmtXi
If i put only A to class Expect I would like to see only A's getters and setters, or vica vera to B. If put in A and B, then all of getters and ...
- 89
1
vote
5
answers
2k
views
How to implement an interface on a protected java class
I was looking to implement an interface on a package-private java class, but I am having some difficulty achieving this. Below is an example.
class Foo
{
String something(String str)
{
...
- 1,135