Question

First off I am new to java and am teaching my self.

my file structure is:

1. ParentClass.java
2. ChildClass1.java
3. ChildClass2.java
4. MyChildClasses.java

both ChildClass1 and 2 extend the ParentClass.
and MyChildClasses has a my main method that works with the child classes

In MyChildClasses main looks like this

    ChildClass1[] myClass1 = new ChildClass1[5]
    ChildClass2[] myClass2 = new ChildClass2[5]

    for(int i = 0; i > 5; i++)
    {
        //Setting the ClassID #'s
        myClass1[i] = new ChildClass1((100+i))
        myClass2[i] = new ChildClass2((100+i), (i+1))
    }

I am wanting to see if there is a way to make this into 1 array that can have both child classes in it?…

making it much easier to print out on screen.

Answer 1

You can declare the array as ParentClass[] and assign instances of ChildClass1 and ChildClass2 into it.

You’d be better served with a java.util.List though:

List<ParentClass> list = new List<ParentClass>();
list.add(new ChildClass1());
// etc.