rrect answerWhich of the following is used for implementing inheritance through class?Optionsinheritedextendsusingimplements

The correct answer is "extends". This keyword is used in Java to implement inheritance through class. Here's how it works:

1. Define a class, which will be the parent class.
2. Define another class, which will be the child class.
3. In the child class definition, use the keyword "extends" followed by the parent class name. This indicates that the child class is inheriting the properties and methods of the parent class.

For example:

// Parent class
public class Animal {
  public void eat() {
    System.out.println("Eating...");
  }
}

// Child class
public class Dog extends Animal {
  public void bark() {
    System.out.println("Barking...");
  }
}

In this example, the Dog class extends the Animal class, meaning it inherits the eat() method from Animal. So, an object of Dog can both eat() and bark().