Multiple Inheritance Using Interface

import java.util.Scanner;

class A1

{

    String name;

     int regno;

    Scanner s1=new Scanner(System.in);

   public void getA()

   {

       System.out.println("Enter the Name of the Student");

        name=s1.next();

        System.out.println("Enter the Register number of the student");

        regno=s1.nextInt();

   }  

    public void displayA()

    {

        System.out.println("    MARK STATEMENT ");

        System.out.println("    ************** ");

        System.out.println("Name  :"+name+"        Regno:"+regno);

    }

}

interface B1

{

    void getB();

    void displayB();

}

class MULTI extends A1 implements  B1

{   

   int DM, CN, OS, RDBMS,total;

    double avg;

    void calc()

    {

        total=DM+CN+OS+RDBMS;

        avg=total/4;

    }

    void displayC()

    {

        System.out.println(" Average="+avg+" Total="+ total);

        System.out.println("************************************");

        if(DM>40&&CN>40&&OS>40&&RDBMS>40)

           System.out.println("Result=PASS");

        else

          System.out.println("Result=FAIL");

        System.out.println();

        System.out.println();

    }

   public void getB()

    {

        System.out.println("Enter the marks for the following Subjects");

        System.out.print("Data Mining =");

        DM=s1.nextInt();

        System.out.print("Computer Networks =");

        CN=s1.nextInt();

        System.out.print("Operating Systems =");

        OS=s1.nextInt();

        System.out.print("RDBMS =");

        RDBMS=s1.nextInt();

    }

  public void displayB()

    {

        System.out.println("************************************");

        System.out.println("Subjects                  Marks");

        System.out.println("************************************");

        System.out.println("Data Mining                 "+DM);

        System.out.println("Computer Networks           "+CN);

        System.out.println("Operating Systems           "+OS);

        System.out.println("RDBMS                       "+RDBMS);

        System.out.println("************************************");

    }   

}

public class Multipleinherit

{

    public static void main(String[] SoftwareDevelopmentLab2015)

    {

               MULTI m=new MULTI();

               m.getA();

               m.getB();

               m.calc();

               m.displayA();

               m.displayB();

               m.displayC();

}

}

OUTPUT:-

Enter the Name of the Student          

Madhu_Shieny

Enter the Register number of the student      

001

Enter the marks for the following Subjects

Data Mining =85

Computer Networks =95

Operating Systems =90

RDBMS =70

    MARK STATEMENT

    ************** ****

Name  :Madhu_Shieny          Regno: 1

************************************

Subjects                                    Marks

************************************

Data Mining                                85

Computer Networks                    95

Operating Systems                      90

RDBMS                                      70

************************************

Average=85.0                 Total=340                  

************************************

Result=PASS