This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
If Class A has Class B, what do I need to do so Class A knows about Class B. I tried doing a simple inheretance program where I output a text on it's constructor but I am having a compile error on new ParentClass(). I dont have the actual compile error with me but I think it's what I have explain about. I tried searching it online but I couldn't find anything useful. Can anyone point me to the right direction.
Java doesn't have a concept of an include file, the compiler is smart enough to get the class details directly from the class files.
If the classB is in the same package as classA (or in the java.lang package), you don't have to do anything. The compiler will find it for you. Otherwise, you can specify the package of classB using the "import" statement.