The super keyword refers to superclass (parent) objects.

The following example illustrates how to use the super keyword to invoke a superclass's constructor. Recall from the Bicycle example that MountainBike is a subclass of Bicycle.

We use the super keyword to access the attribute of the superclass. class Animal { protected String type="animal"; } class Dog extends Animal { public String type="mammal"; public void printType() { System.out.println("I am a " + type); System.out.println("I am an " + super.type); } } class Main ...

Field Access: Use super.fieldName to access a field from the superclass when it is hidden by a field of the same name in the subclass.

The super keyword can be used in two ways: as a "function call" (super(...args)), or as a "property lookup" (super.prop and super[expr]).

Super keyword in java. The java super keyword is used to refer the immediate parent class object. There are three usage of super. Let's see:

Lets take an example to understand this: In the following program, we have a data member num declared in the child class, the member with the same name is already present in the parent class. There is no way you can access the num variable of parent class without using super keyword.

Super is used to call a superclass constructor: When a subclass is defined in the program, its constructor must call the constructor of its parent class. This is done using the super() keyword, which calls the super or parent class constructor.

Java Examples Java Compiler Java Exercises Java Quiz Java Server Java Syllabus Java Study Plan Java Interview Q&A Java Certificate ... In Java, the super keyword is used to refer to the parent class of a subclass.

The keyword super is very useful ... in the subclass. ... In the example below, the Student class overrides the getFood method of the Person class, and it uses super.getFood() to call the Person getFood method before adding on to it....

March 8, 2022 - The print method in the child class invokes the display method of the parent class by using the super keyword. The example says that to invoke the methods in the child class from the parent class, we must use the “super” keyword.

In the given program, you have two classes namely Sub_class and Super_class, both have a method named display() with different implementations, and a variable named num with different values. We are invoking display() method of both classes and printing the value of the variable num of both classes.

July 31, 2025 - Master Java inheritance with 'super' keyword! Unleash its power to refine object-oriented code & build robust applications. Read to know more!

June 10, 2024 - Example of this is already shown above where we use this as well as super inside public static void main(String[]args) hence we get Compile Time Error since cannot use them inside static area. We can use this as well as super any number of times in a program. Both are non-static keyword.

1 month ago - Learn the use of super keyword in Java to access parent class methods, constructors, and variables with clear examples and explanation.

September 3, 2025 - A subclass's constructor needs to call the parent class's constructor when it is created, which is why super is used to call a superclass constructor. Using the super() keyword, which invokes the parent class' constructor, this is achieved.

December 27, 2023 - Explanation: In this example, the ‘Parent’ class has a field ‘num’ with a value of 10. The ‘Child’ class also has a field ‘num’ with a value of 20. The ‘display’ method of the ‘Child’ class uses the ‘super’ keyword to access the parent class’s ‘num’ field.

February 19, 2025 - Example 3 shows how you can access the methods of parent’s class that the child class also defines. The parent class Sound in the program below defines a method voice(). The child class Drum also has a method with the same name i-e voice(). It means the method voice is overridden by the subclass. Run the program below to learn how the super keyword is necessary to use the parent class’ methods in the child class.

April 25, 2025 - The general syntax to call superclass instance variable in the subclass using super keyword is as follows: super.variable_name; For example: super.a; // Here, a is an instance variable.