variable classes but same method

[zscipio]

In JAVA I have 26 classes named A, B,.......,Y,Z. Each of them implements a method named Meth().

I have a String str that can contain the letter "A" or "B" or ....... or "Y" or "Z".

How can I implement the statement str.Meth();

so it will go to a different method depending on the value in str.

Thank you

[Creatures]

so the methods do different things? or are the really the same just in different classes which seems to be kind of strange

could you state your problem, maybe there is a simpler or other way of solving it

Creatures

[zscipio]

The methods do different things depending on the class. I could use an IF ELSE construct and just list them all or use a SWITCH CASE construct but I am trying to do it in one statement.

[jkrohn]

So essentially you have Class1, Class2, Class3 all of which implement Meth()

You have a string that contains the name of a class.
So str = "Class3";

You want to turn something like

switch(str){
   case "Class1":
            Class1.Meth();
}

Into a one line statement in Java?

[zscipio]

Yes you have it.

Thanks.

[jkrohn]

I don't do Java, but this appears that it would work.

Transitioning into OOP: Intricacies of Java object construction and initialization

Specifically

Object   anObject = Class.forName("com.acme.utils.Foobar").newInstance();
anObject.Meth();

[zscipio]

When I tried
Object anObject = Class.forName("AK").newInstance();
anObject.Transform();
the compiler said "The method Transform() is undefined for the type Object ".
When I tried
((AK) anObject).Transform();
it compiled

When I tried
Class aClass = (Class) Class.forName("AK").newInstance();
aClass.Transform();
the compiler said "The method Transform() is undefined for the type Class".

When I tried
AK.Transform(); it compiled.

For some reason the class name must be mentioned.

[Rootstonian]

Not 100% sure what you're trying to do??? So if str = A or B, you want to call A.Meth()???

Hmmm...seems to me when you instantiate the class, you'll have access to the correct Meth(); function; I just don't know what you're trying to do LOL

void main() {

A myClassA;
myClassA.Meth();
B myClassB;
myClassB.Meth();

// do you want this?

if(str == 'A')
myClassA.Meth();

}

[zscipio]

To all those who gave suggestions a hearty thank you. The final solution was a follows:

An interface was set up.
************************************
package writeTextFile;

public interface WriteFile {
public void Transform();
}
************************************
All the classes implement the interface such as:
************************************
package writeTextFile;

public class AK implements WriteFile
{
public void Transform()
{
System.out.println("Went to AK");
return;
}

}
************************************************** ********
The 2 statements necessary to execute the transfer were:
************************************************** ************
WriteFile t = (WriteFile) Class.forName("writeTextFile." + state).newInstance();
t.Transform();
************************************************** ************
where the string state contained the 2 character class name.
The important but not obvious point was that the package name "writeTextFile" had to be included.

Thank you again for all your help.