What is the function of the `super` keyword in Java?

• A. To call a constructor of the current class
• B. To access methods and constructors of the superclass
• C. To refer to the current object in a method
• D. To implement interfaces from a parent class

Answer: (B)

The super keyword in Java serves the specific function of accessing methods and constructors from a superclass. When a subclass needs to invoke a method or a constructor that exists in its immediate parent class, it uses the super keyword to refer to the superclass and differentiate between members of the superclass and those within the subclass.

This is particularly useful in scenarios where an overridden method in the subclass needs to call the version of the method defined in the parent class, allowing for the appropriate behavior to be executed. Additionally, when calling a constructor of the superclass, super can be used in the subclass constructor to ensure that the superclass is properly initialized before any subclass-specific initialization occurs.

For example:

class Parent {

Parent() {

System.out.println("Parent constructor");

}

void show() {

System.out.println("Parent show method");

}

}

class Child extends Parent {

Child() {

super(); // Calls the constructor of Parent

System.out.println("Child constructor");

}

void show() {

super.show(); // Calls the show method from Parent

System.out.println("Child show method");

}

}

In this example, the super() call in the `Child