All the classes defined are subclasses by default.
Object is a superclass of every class.
The inheritance happens automatically.
Your classes will inherit members from the class Object.
MethodPurpose
toString()returns a string describing the current object
equals()compares two objects
getClass()returns a Class that identifies the class of the current object.
hashCode()calculates a hashcode for an object
notify()wakes up a thread associated with the current object.
notifyAll()wakes up all threads associated with the current object.
wait()causes a thread to wait
class Dog{
public Dog(String aType){
}
}
public class MainClass{
public static void main(String[] a){
Dog d = new Dog("a");
Class objectType = d.getClass();
System.out.println(objectType.getName());
}
}
Dog