make elements

[casta]

Hope you can help me. In previous online exercises, I was able to make elements of an object by hand:

A A1 = new A();
A A2 = new A();
B B1 = new B();

Now, I would like to make as much elements of B, as there are in the list of A. Each element of B should be different, and each element of B should have its own reference variable. How could I do that?

	public static void makeB(List<A> listOfA) {
		for (A a : listOfA)
		{
			new B(); //HOW??
		}
	}

[jim829]

To do that you only need a count of the elements in the list of A (the elements themselves are not used). So simply use a for loop
with a limit based on listOfA.size() and add the new B elements to a new List implementation.

Regards,
Jim

[Norm]

Note: The posted code has several syntax errors in it that make the code harder to understand.
A A1 = new A; // missing ()s after A

for (Egg A : listOfA) // If listOfA contains A objects then "Egg A" is wrong. I should be "A egg"

When posting code you should try to post valid code so we can know how good your java knowledge is.

[casta]

To do that you only need a count of the elements in the list of A (the elements themselves are not used). So simply use a for loop
with a limit based on listOfA.size() and add the new B elements to a new List implementation.

But how could I instantly give each element a reference variable?

[Norm]

how could I instantly give each element a reference variable?

You can't. Variable names are created when the programmer types them into the source file.

A reference to an instance of a class can be saved in a collection like an ArrayList or in an array.

[casta]

Note: The posted code has several syntax errors in it that make the code harder to understand.
A A1 = new A; // missing ()s after A

for (Egg A : listOfA) // If listOfA contains A objects then "Egg A" is wrong. I should be "A egg"

When posting code you should try to post valid code so we can know how good your java knowledge is.

Thank you for your reply. I wanted to sketch the situation, but I was very inaccurate in my expressions. Sorry for that!

[casta]

Thanks Norm. That was what I wanted to know!