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I have Constructor Tree(int a, int b, int c) and second Constructor Tree(int a, int b, int c, String s). How to load second constructor from first just to save writing all the logics ?
I thought about something like this but it gives me 'null' object.
public Tree(int a, int b, int c){
Tree t1…
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I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor.
// main class that everything inherits
class Grandpa
{
public function __construct()
{
}
}
class Papa extends Grandpa
{
public function __construct()
…
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I heard that private constructor prevent object creation from outside world.
When i have a code
public class Product
{
public string Name { get;set;}
public double Price {get;set;}
Product()
{
}
public Product(string _name,double _price)
{
}
}
here still i can declare…
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Is there a way to write a Spring bean in XML so that it uses constructor injection when that constructor has a varargs parameter type? IE, is there a way to specify an array the way you can specify a list?
For instance:
class MyClass {
MyClass(String... args) {
// rest omitted
}
}
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Hi,
I think it is not mandatory to have a default constructor in a class (C#).
So in that situation shall I have a empty constructor in the class or I can skip it?
Is it a best practice to have a default empty constructor?
Class test
{
test()
{
}
......
}
or
Class test
{
…
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