Using which of the following, multiple inheritance in Java can be implemented?OptionsMultithreadingInterfacesProtected methodsPrivate methods

Interfaces can be used to implement multiple inheritance in Java. Here's a step-by-step guide on how to do it:

Step 1: Define the interfaces. In Java, an interface is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.

interface Interface1 {
    void method1();
}

interface Interface2 {
    void method2();
}

Step 2: Create a class that implements both interfaces. In Java, a class can implement multiple interfaces by using the implements keyword.

class MyClass implements Interface1, Interface2 {
    public void method1() {
        System.out.println("Method 1");
    }

    public void method2() {
        System.out.println("Method 2");
    }
}

Step 3: Create an object of the class and call the methods.

public class Main {
    public static void main(String[] args) {
        MyClass myClass = new MyClass();
        myClass.method1();
        myClass.method2();
    }
}

When you run the Main class, it will output:

Method 1
Method 2

This shows that the MyClass object is able to access both method1 from Interface1 and method2 from Interface2, demonstrating multiple inheritance in Java through interfaces.