when creating a instance to a class, do you have to include all the varaibles
I basically want to get a value from a function in Class B from Class A
I write a getter method in class B that returns my value.
In Class A, I do
b value = new b();
String k = a.getb();
System.out.println( k );
my question is my Class B has many variables in the constructor. Example Class B(string, list, dialog, etc, etc, etc);
Do I have to include all those varaibles when all I really care about is just getting the value fro the method?
I write a getter method in class B that returns my value.
In Class A, I do
b value = new b();
String k = a.getb();
System.out.println( k );
my question is my Class B has many variables in the constructor. Example Class B(string, list, dialog, etc, etc, etc);
Do I have to include all those varaibles when all I really care about is just getting the value fro the method?
for_yan
If you use this constructor which has all these arguments - you have to have all of them in your new() statement. You can provide null or zero or any othe valuie but number of parameters should be the one contryctoir needs.
ASKER CERTIFIED SOLUTION
membership
Create a free account to see this answer
Signing up is free and takes 30 seconds. No credit card required.
ASKER
You can have 2 constructors in one class?
>>You can have 2 constructors in one class?
You can have as many as you want. Providing the value of field is available, you could even have a no-arg ctor:
You can have as many as you want. Providing the value of field is available, you could even have a no-arg ctor:
public class B {
public B(){} // no-arg ctor
...
}