Java program to implement multiple-inheritance using the interface

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mahmoud2506

2022-05-07

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In this program, we will create 2 Interfaces. Each interface contains an abstract method. Then we will implement created interface in a class.

Program/Source Code:

The source code to implement multiple-inheritance using the interface is given below. The given program is compiled and executed successfully.

// Java program to implement multiple-inheritance 
// using the interface

interface Inf1 {
  void sayHello1();
}

interface Inf2 {
  void sayHello2();
}

class Sample implements Inf1, Inf2 {
  public void sayHello1() {
    System.out.println("Hello World1");
  }

  public void sayHello2() {
    System.out.println("Hello World2");
  }
}

public class Main {
  public static void main(String[] args) {
    Sample S = new Sample();

    S.sayHello1();
    S.sayHello2();
  }
}

Output:

Hello World1
Hello World2

Explanation:

In the above program, we created 2 interfaces Inf1, Inf2. Then we implemented the created interfaces in the Sample class to implement multiple-inheritance.

The Main class contains a method main(). The main() method is the entry point for the program, here we created the object of the Sample class. After that, we called methods and printed the result.

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Java program to implement multiple-inheritance using the interface

Java program to implement multiple-inheritance using the interface

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