Questions tagged [generic-method]
180 questions
1
vote
1 answer
sending a generic class object to a generic method (java)
I have a class named InstanceClass as follows:
package trials;
public class InstanceClass {
private T num;
public void calculate() {
System.out.printf("%s", num);
}
public T getNum() {
return num;
}
…
nhnkrpzoglu
- 13
- 3
1
vote
1 answer
Cast enum-value in generic method to int
I have created a generic method. The typeparameter could be any enum:
private AdditionalFields GetAdditionalFields(params T[] fields) where T : struct, Enum
{
var fieldTextList = new List();
foreach ( var field in fields )
{
…
BennoDual
- 5,865
- 15
- 67
- 153
1
vote
1 answer
How to use STATIC class value with LIST or LAMBDA EXPRESSION?
This is my sample code.
public class Sample
{
public void Main()
{
Execute01();
Execute02();
Execute01();
Execute02();
Execute01();
…
ha2pa1
- 25
- 3
1
vote
1 answer
Creating a method that accepts both Vector2 and Vector3 arguments in C#
I'm starting with C# and having trouble writing a method that accepts both Vector2 and Vector3 arguments in C#.
Generic methods looked like the way to go, but I can't make it work just yet. Here's what I tried:
static void GetNoisePosition(ref T…
Robin
- 21,667
- 10
- 62
- 85
1
vote
2 answers
Dart: doesn't override generic method has generic parameter type similar to the return type
I have an issue to override a generic method from an abstract class.
Here is my abstract class:
abstract class A {
String getData(Type key);
}
when I created a class (B) to implement class (A) as showing below:
class B implements A {
…
Ahmed Mehanna
- 141
- 3
- 10
1
vote
3 answers
How to create a generic method that accepts only generic parameters and not raw type parameters?
I want to create a generic method that accepts only an arraylist of integers. But the method is also accepting a raw type. How can I restrict it to accept only an arraylist of integers?
package generics;
import java.util.ArrayList;
import…
Subbu
- 217
- 2
- 11
1
vote
1 answer
In generic method, why the generic overload is preferred to an implemented method with parent type?
Let's say I create a generic method, and implement some types, like shown in the code below.
I also have two objects, a Foo and a Bar, where Bar inherits from Foo.
I then implement the generic method for Foo.
If I call the method with Bar, why…
Eduardo Pignatelli
- 134
- 4
- 15
1
vote
2 answers
Why i am getting error by setting the Integer type parameter to the Integer variable in generics?
I have the following program:
class MyGenClass{
public void setAge(T ageParam){
Integer age = ageParam;
}
}
class Program{
public static void main(String args[]){
MyGenClass gnClass = new MyGenClass();
…
Stack Overflow
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1
vote
2 answers
Java - Generics - Casting generic object in generic specified object doesn't work
I'm trying to resolve this apparently simple generic casting problem :
First, declaring this simple generic object :
public interface GenericObject {}
Second, declaring this working interface :
public interface Generic { // I don't want to do…
MonkeyJLuffy
- 195
- 3
- 15
1
vote
3 answers
Generic method return type
Does generic method return type resolve on the basis of value reference?
e.g.
public class TestGenericMethod
{
public static void main(String[] args)
{
TestGenericMethod dis = new TestGenericMethod();
String str =…
Arun
- 2,360
- 2
- 17
- 23
1
vote
3 answers
Java - Generics; Is it usefull to parameterize a method if you want to swap 2 Items of an object?
The following code alows to swap 2 Items of an Object :
public class Box {
F first;
S second;
//Method to swap
public static void swapItems(Box box){
F temp = box.first;
box.first = box.second;
…
Smith
- 25
- 4
1
vote
0 answers
Java: Pass genric type from generic method to the new instance a generic class (inside method)
How can I instantiate a new Object of a generic class inside of a generic method, exactly with the same type that is passed (as type) to that method?
(Something like passing a variable from method parameters to a class constructor.)
Example: Both B…
Mir-Ismaili
- 13,974
- 8
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- 100
1
vote
3 answers
Overriding a generic method on a non generic class
I know how to accomplish my goal when using a generic class. But to understand why the syntax of generic methods is allowed (to be declared virtual or abstract) in a non-generic class I can't seem to determine.
The first chunk of code shows a simple…
aitee
- 91
- 1
- 1
- 9
1
vote
1 answer
Why is this generic method not giving compile-time error?
In this program I am creating a generic method in which second parameter extends first parameter but when I am passing String as first paameter and Integer array as second parameter then too the program is running fine. Why is it not giving compile…
Ankit Srivastava
- 29
- 4
1
vote
1 answer
generic methods: how to force using the most specialized method available
I defined a generic method Use in an interface IInterface. I tried to make an implementation of that interface where the concrete implementation of the Use method depends on the actual type T, and I want to always call the most specialized…
Kjara
- 2,504
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