Java program to implement multiple inheritance

import java.io.*; interface bookinfo {          public void getbookdata()throws IOException;             public void putbookdata(); } interface basicinfo {          public void getbasicdata()throws IOException;             public void putbasicdata(); } interface otherinfo {          public void getotherdata()throws IOException;             public void putotherdata(); } class book implements bookinfo,basicinfo,otherinfo {          String Bname,Bauthor, Blanguage,Bpublisher;             int Bprice, Bcopies,Byear;             BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); public void getbookdata()throws IOException {          System.out.println("Enter the Book name:");             Bname=br.readLine();             System.out.println("Enter the author's name:");             Bauthor=br.readLine(); } public void putbookdata() { System.out.print(Bname+"\t"+Bauthor+"\t"); } public void getbasicdata()throws IOException {          System.out.println("Enter the language:");             Blanguage=br.readLine();                         System.out.println("Enter the published year:");             Byear=Integer.parseInt(br.readLine());             System.out.println("Enter the price");             Bprice=Integer.parseInt(br.readLine()); } public void putbasicdata() {          System.out.print(Blanguage+"\t\t"+Byear+"\t"+Bprice+"\t"); } public void getotherdata()throws IOException {          System.out.println("Enter the number of copies:");             Bcopies=Integer.parseInt(br.readLine());             System.out.println("Enter the publisher:");             Bpublisher=br.readLine(); } public void putotherdata() {          System.out.print(Bcopies+"\t"+Bpublisher+"\t\t"); } } class interfaceEg { public static void main(String s[])throws IOException             {               book it[];                BufferedReader br=new BufferedReader(new                InputStreamReader(System.in));                System.out.println("How much entries..?");                int k=Integer.parseInt(br.readLine());                it=new book[k];                for(int i=0;i<k;i++)                { it[i]=new book();                }                               for(int i=0;i<k;i++)                {                int j=i+1;                System.out.println("ENTER DETAILS OF THE BOOK :   "+j);                it[i].getbookdata();                it[i].getbasicdata();                it[i].getotherdata();                }                            System.out.println("\n\n***********-----------------Book               details-----------------************\n");               System.out.println("Book\tAuthor\tLanguage\tYear\tPrice\tCopies              \tPublisher");              System.out.println("............................................................................");              for(int i=0;i<k;i++)                {                                 it[i].putbookdata();                it[i].putbasicdata();                it[i].putotherdata();                }               }              } Output