This program cannot store the previous record. Can someone help me to
solve this problem?

Anyone there have source code of library system?

import java.lang.*;
import java.io.*;

class ClearScr{
public static void clrscr(){
for(int cnt=0; cnt<=24; cnt++){
System.out.println();
}
}
}

class BooksInfo{

public String Btitle;
public String Bisbn;
public String Bauthor;
public String name;
public String date;
public String Rdate;
public String status;
public String status2;

public void includeBooks()throws java.io.IOException{

InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);

System.out.println("\n\n\n\n\n\n");
System.out.println("
***********************");
System.out.println
(" Book Shop");
System.out.println("
***********************");
System.out.println("\n");
System.out.println("
Book in the Catalog");
System.out.println
("====================================================================
============");
System.out.println("");
System.out.println("");
System.out.print(" Enter Author's
Name :");
Bauthor = in.readLine();

System.out.print(" Enter the Title of the
Book :");
Btitle = in.readLine();

System.out.print(" Enter the ISBN of the
Book :");
Bisbn = in.readLine();

System.out.print(" Enter Book Status
(in/out) :");
status = in.readLine();

System.out.println();
}

public void borrowBooks()throws java.io.IOException{

InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);

System.out.println("\n\n\n\n\n\n");
System.out.println
(" ***********************");
System.out.println
(" Book Shop");
System.out.println
(" ***********************");
System.out.println("\n");
System.out.println("\t\t\t*** Check Out
Books ***");
System.out.println("\t\t\t----------------
-----\n");

System.out.print("\t\t\tMember's
Name : ");
name = in.readLine();

System.out.print("\t\t\tRent Date : ");
date = in.readLine();

System.out.print("\t\t\tDue Date : ");
Rdate = in.readLine();
}

public void returnBooks()throws java.io.IOException{

InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);

System.out.println("\t PLEASE KeyIn (in) for
retun book || (out) for no return book");
System.out.println("\n");

System.out.print("\t Enter Book Status
(in/out) :");
status2 = in.readLine();

}

public void DisplayBooks()throws java.io.IOException{

System.out.println("\t\t\tTitle : "+ Btitle);

System.out.println("\t\t\tISBN : "+ Bisbn);
System.out.println("\t\t\tAuthor: "+ Bauthor);
System.out.println("\t\t\tRent Date : "+ date);
System.out.println("\t\t\tDue Date : "+ Rdate);
System.out.println("\t\t\tBook Status : "+
status);
System.out.println("\t\t\tMember's Name : "+
name);
System.out.println();
}

}
class Options
{
int total;
String QtyOfBooks ="";
String name2;
String name ="";
String date ="";
String Rdate ="";
String status ="";
String status2 ="";

boolean inputCorrect = true;
BooksInfo[] bk = new BooksInfo[3];

public void option1()throws java.io.IOException{

ClearScr.clrscr();
System.out.println("\t\t\t*** Include Books ***");
System.out.println("\t\t\t---------------------
\n");
System.out.print("\t\t\tEnter Quantity of
Books :");
InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);
QtyOfBooks = in.readLine();
total = Integer.parseInt(QtyOfBooks);

System.out.println();

if(total <= bk.length){

for(int cnt=0; cnt<total; cnt++){

bk[cnt] = new BooksInfo();
bk[cnt].includeBooks();
}
}
}

public void option2()throws java.io.IOException{

ClearScr.clrscr();
System.out.println("\t\t\t*** Check Out Books
***");
System.out.println("\t\t\t---------------------
\n");
System.out.print("\t\t\tEnter Quantity of
Books :");
InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);
QtyOfBooks = in.readLine();
total = Integer.parseInt(QtyOfBooks);

System.out.println();

if(total <= bk.length){

for(int cnt=0; cnt<total; cnt++){

bk[cnt] = new BooksInfo();
bk[cnt].borrowBooks();
bk[cnt].includeBooks();

}
}
}

public void option3()throws java.io.IOException{

ClearScr.clrscr();
System.out.println("\n\t\t\t*** Return Books
***\n");
System.out.println("\t\t\t------------------------
\n");

System.out.print("\t\t\tEnter Member's Name: ");
InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);
name2 = in.readLine();
System.out.println();


for(int cnt=0; cnt<total; cnt++){

if(bk[cnt].name.equals(name2)){
System.out.println
("\t\t\tMember's name : "+bk[cnt].name);
System.out.println("\n");
System.out.println
("\t\t\tISBN : "+bk[cnt].Bisbn);
System.out.println
("\t\t\tTitle : "+bk[cnt].Btitle);
System.out.println("\n");
System.out.println("\t\t\tRent
Date : "+bk[cnt].date);
System.out.println("\t\t\tDue
Date : "+bk[cnt].Rdate);
System.out.println("\n");

System.out.println();
}
}
if(total <= bk.length){

for(int cnt=0; cnt<total; cnt++){

bk[cnt] = new BooksInfo();
bk[cnt].returnBooks();

}
}

System.out.print("Press enter to continues");
in.readLine();
}



public void option4()throws java.io.IOException{

ClearScr.clrscr();
System.out.println("\n\t\t\t*** Display Books
Status ***\n");
System.out.println("\t\t\t-------------------------
--------\n");

for(int cnt=0; cnt<total; cnt++){

bk[cnt].DisplayBooks();

}

System.out.print("\t\t\tPress enter to continues");
InputStreamReader ir = new InputStreamReader
(System.in);
BufferedReader in = new BufferedReader(ir);
in.readLine();
}