Table of Contents
- 1 What happens when a method in a class has the same signature as a method in its superclass?
- 2 What happens when method signature is the same and the return type is different?
- 3 When a method in a subclass has the same name and type?
- 4 Can a method be override with the same method name and arguments but different return types?
- 5 What happens if superclass and subclass having same field name?
- 6 What happens if two methods in the same class have different signatures?
- 7 What happens when a subclass extends a superclass in Java?
What happens when a method in a class has the same signature as a method in its superclass?
If a subclass defines a static method with the same signature as a static method in the superclass, then the method in the subclass hides the one in the superclass. The version of the overridden instance method that gets invoked is the one in the subclass.
What happens when method signature is the same and the return type is different?
But you cannot declare two methods with the same signature and different return type. It will throw a compile-time error.
When a method in subclass have same name and type signature as a method in super class it is called as?
Discussion Forum
Que. | What is the process of defining a method in a subclass having same name & type signature as a method in its superclass? |
---|---|
b. | Method overriding |
c. | Method hiding |
d. | None of the mentioned |
Answer:Method overriding |
When a method has same signature in the base class as the sub class?
When a method in a subclass has the same name, same parameters or signature, and same return type(or sub-type) as a method in its super-class, then the method in the subclass is said to override the method in the super-class.
When a method in a subclass has the same name and type?
Explanation: When a method in a subclass has the same name and type signatures as a method in the superclass, then the method in the subclass overrides the method in the superclass.
Can a method be override with the same method name and arguments but different return types?
Yes. It is possible for overridden methods to have different return type . But the limitations are that the overridden method must have a return type that is more specific type of the return type of the actual method.
When a method has the same name and takes the same parameters as a method in the parent class it is called?
Overriding occurs when two methods have the same method name and parameters. One of the methods is in the parent class, and the other is in the child class.
When method in subclass has same name and return type as method in super class it is known as MCQ?
4. Summary. Method overriding occurs when a public method in a subclass has the same method signature as a public method in the superclass.
What happens if superclass and subclass having same field name?
what happens if both superclass and subclass have a field with same name? Sub class field will hide the Super class field. Hidden super class field in sub class can be accessed using super keyword.
What happens if two methods in the same class have different signatures?
If two methods in the same class have the same name but different signatures, the second overrides the first. Inheritance involves a subclass, which is the general class, and a superclass, which is the specialized class.
Can a superclass call a subclass’s method?
It is not possible for a superclass to call a subclass’s method. Private members of the superclass cannot be accessed by the subclass. When a subclass extends a superclass, the public members of the superclass become public members of the subclass.
Can you override a private method defined in a superclass?
You can override a private method defined in a superclass. True or false? You can override a static method defined in a superclass. How do you explicitly invoke a superclass’s constructor from a subclass?
What happens when a subclass extends a superclass in Java?
When a subclass extends a superclass, the public members of the superclass become public members of the subclass. When an interface variable references an object, you can use the interface variable to call any and all of the methods in the class implementing the interface. C) prefixing its name with the super key word and a dot (.)