Difference Between This And Super In Java
distinguishing 'this' and 'super' keywords in Java
Difference Between This And Super In Java
In Java, “this” keyword is a reference to the current instance of a class, whereas “super” keyword is a reference to the immediate parent class of the current instance. When using “this”, you are referring to members of the current class, while “super” is used to access members of the immediate parent class. This allows for code reusability and helps maintain the hierarchy and relationship between classes in object-oriented programming.
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1 - The keyword “this” in Java refers to the current instance of a class, while the keyword “super” refers to the immediate parent class of the current class.
2) “this” is used to refer to instance variables or methods of the current class, while “super” is used to access members of the parent class.
3) When a subclass inherits a method or field from a parent class, the subclass can use “super” to call the parent class's implementation of that method or field.
4) “this” can be used to invoke a constructor of the same class, while “super” can be used to call a constructor of the parent class.
5) In a constructor, “this()” is used to call another constructor within the same class, while “super()” is used to call a constructor of the parent class.
6) The use of “this” can help differentiate between instance variables and method parameters with the same name, while “super” is used to access superclass members when there is a name conflict with subclass members.
7) “this” is a reference to the currently executing object, while “super” is a reference to the instance of the immediate parent class.
8) “this” can be used to return the current class instance, while “super” is used to distinguish between methods or fields of the superclass and the current class.
9) When overriding a method in a subclass, the “super” keyword can be used to explicitly call the superclass method implementation, while “this” is used to refer to the current object's instance variables.
10) Both “this” and “super” are keywords in Java that serve different purposes, with “this” related to the current object and “super” related to the parent class.
These points can be covered in detail in our training program for students who want to enhance their understanding of object oriented programming concepts in Java. The program will provide hands on exercises and practical examples to illustrate the usage and importance of “this” and “super” keywords in Java programming.
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