Below is my code.
public abstract class AbstractClass {
public String publicMethod() {
System.out.println("This is Public Method");
return "This is Public Method";
}
abstract public String abstractMethod();
}
public class ConcreteClass extends AbstractClass{
@Override
public String abstractMethod() {
String str = "This is abstract method implementtation in ConcreteClass";
System.out.println(str);
return str;
}
public String abstractMethod(String string) {
String str = "This is overloaded method abstractMethod in ConcreteClass";
System.out.println(str);
return str;
}
public String publicMethod() {
System.out.println("This is Public Method in ConcreteClass");
return "This is Public Method in ConcreteClass";
}
}
So I have public String publicMethod() method in abtract class as well as in class extending that abstract class. Also I have not given @Override annotation. Why no error given ? Also is this method overriding or publicMethod is getting ignored ?
@Override is an optional annotation. If you are using this annotation for a method that doesn't override a super-class method and doesn't implement an interface method, the compiler gives an error.
However, it is allowed to override a method without marking it with that annotation (though using that annotation is useful, since it can catch errors when you intend to override a method but get the signature of the method you intend to override wrong).
Yes, your sub-class's publicMethod() overrides the super-class method of the same name.