Serialization and Binary I/O Can you please help me the JAVA program? Here is th
ID: 3786784 • Letter: S
Question
Serialization and Binary I/O
Can you please help me the JAVA program? Here is the requirement:
Write the following programs based that are based on Programming Exercises 17.6, 17.7, 17.14, and 17.15:
1. Modify DataSetBook and Book to be serializable
2. Write a program Cereal that saves Book data to a file. Cereal takes two command line arguments: an int and a String. Cereal uses the int argument to control the number of Book objects that it creates and adds to a DataSetBook object. Cereal uses the String argument as a filename for a file containing the serialized data. Books are given some automatically assigned changing title and author values, (such as "book0" "book1" etc, and "auth0", "auth1" etc). The page values should be a random value between 100 and 200.
3. Write a program Enigma that takes a single String as a command line argument. Enigma should read the file specified by the String argument, add 5 to each byte, and leave the altered data values in a file whose name is the command line argument. Note that this "updating in place" is the most difficult part of this lab:java Enigma sophie.dat should read file sophie.dat, and upon completion, leave the modified data in filesophie.dat.
4. Write a program Bombe that takes a single String as a command line value. Bombe works just like Enigma, but subtracts 5 from each byte of the file. If the user runs java Enigma sophie.dat followed by java Bombe sophie.dat, the data read by Enigma will be exactly the data written by Bombe.
5. Write a program Reconstitute that takes a single String command line argument. Reconstitute uses the argument as a filename for a file that contains the data serialized by Cereal. Read the file, restore the DataSetBook and its Book contents, and print them.
--------------here is Book.java code-------------------
public class Book {
private String author;
private String title;
private int pages;
public Book(String auth, String titl, int pag) {
author = auth;
title = titl;
pages = pag;
}
public int getPages() {
return pages;
}
@Override
public String toString() {
return "Book [author=" + author + ", title=" + title + ", pages=" + pages + "] ";
}
// this is a really poor way to compare Book objects, but it will work for us
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Book other = (Book) obj;
if (author == null) {
if (other.author != null)
return false;
} else if (!author.equals(other.author))
return false;
if (pages != other.pages)
return false;
if (title == null) {
if (other.title != null)
return false;
} else if (!title.equals(other.title))
return false;
return true;
}
}
------------------------------------------------------------------------------------------------------------------------------
DataSetBook.java
import java.util.ArrayList;
import java.util.Arrays;
public class DataSetBook extends ArrayList {
public DataSetBook(){
}
public boolean add(Book objToAdd){
return super.add(objToAdd);
}
public int size(){
return super.size();
}
public Book getMin(){
int size = super.size();
if(size == 0){
return null;
}
else{
Book minBook = super.get(0);
for(int i=0; i Book b = super.get(i);
if(minBook.getPages() > b.getPages()){
minBook = super.get(i);
}
}
return minBook;
}
}
public Book getMax(){
int size = super.size();
if(size == 0){
return null;
}
else{
Book maxBook = super.get(0);
for(int i=0; i Book b = super.get(i);
if(maxBook.getPages() < b.getPages()){
maxBook = super.get(i);
}
}
return maxBook;
}
}
public java.lang.String toString(){
return "Number of Books: "+super.size()+" "+"Minimum Book is "+getMin().toString()+" "+"Maximum Book is "+getMax().toString()+" "+"THe content of entire store "+Arrays.toString(super.toArray());
}
}
Explanation / Answer
// 17.6
// Loan Object
import java.io.Serializable;
// Class Loan is implementing Serializible
public class Loan implements Serializable{
//Attributes of Loan object
String accNo;
String holderName;
String loanId;
double loanAmount;
double rateOfInterest;
//Setters and Getters of Loan
public String getAccNo() {
return accNo;
}
public void setAccNo(String accNo) {
this.accNo = accNo;
}
public String getLoanId() {
return loanId;
}
public void setLoanId(String loanId) {
this.loanId = loanId;
}
public double getLoanAmount() {
return loanAmount;
}
public void setLoanAmount(double loanAmount) {
this.loanAmount = loanAmount;
}
public double getRateOfInterest() {
return rateOfInterest;
}
public void setRateOfInterest(double rateOfInterest) {
this.rateOfInterest = rateOfInterest;
}
public String getHolderName() {
return holderName;
}
public void setHolderName(String holderName) {
this.holderName = holderName;
}
}
//StoreLoanObjects.java
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
public class StoreLoanObjects {
public static void main(String[] args) throws IOException {
//Creating a FileInputStream Object to create a file
FileOutputStream fos = new FileOutputStream("D:\Exercise17_06.dat");
//ObjectOutputStream is instantiated to write the object in file
ObjectOutputStream oos = new ObjectOutputStream(fos);
//Creating Loan Objects
Loan loan1 = new Loan(); loan1.setHolderName("Jack");
loan1.setAccNo("3501458900");loan1.setLoanAmount(500000);
loan1.setLoanId("LOAN1");loan1.setRateOfInterest(13.5);
Loan loan2 = new Loan();loan2.setHolderName("James");
loan2.setAccNo("3501458901");loan2.setLoanAmount(600000);
loan2.setLoanId("LOAN2");loan2.setRateOfInterest(13.5);
Loan loan3 = new Loan();loan3.setHolderName("Jane");
loan3.setAccNo("3501458902");loan3.setLoanAmount(400000);
loan3.setLoanId("LOAN3");loan3.setRateOfInterest(13.5);
Loan loan4 = new Loan();loan4.setHolderName("Jacob");
loan4.setAccNo("3501458903");loan4.setLoanAmount(650000);
loan4.setLoanId("LOAN4");loan4.setRateOfInterest(13.5);
Loan loan5 = new Loan();loan5.setHolderName("Javed");
loan5.setAccNo("3501458904");loan5.setLoanAmount(550000);
loan5.setLoanId("LOAN5");loan5.setRateOfInterest(13.5);
//Creating a Collection to add Loan objects to ArrayList
ArrayList<Loan> loanList = new ArrayList<Loan>();
loanList.add(loan1);loanList.add(loan2);
loanList.add(loan3);loanList.add(loan4);
loanList.add(loan5);
//Writing Loann Collection into List
oos.writeObject(loanList);
// Successfully Serialized
System.out.println("Loan Data is stored..");
oos.close(); // Closing Streams
fos.close();
}
}
Output:
Loan Data is stored
//17.7
// Loan.java
import java.io.Serializable;
// Class Loan is implementing Serializible
public class Loan implements Serializable{
//Attributes of Loan object
String accNo;
String holderName;
String loanId;
double loanAmount;
double rateOfInterest;
//Setters and Getters of Loan
public String getAccNo() {
return accNo;
}
public void setAccNo(String accNo) {
this.accNo = accNo;
}
public String getLoanId() {
return loanId;
}
public void setLoanId(String loanId) {
this.loanId = loanId;
}
public double getLoanAmount() {
return loanAmount;
}
public void setLoanAmount(double loanAmount) {
this.loanAmount = loanAmount;
}
public double getRateOfInterest() {
return rateOfInterest;
}
public void setRateOfInterest(double rateOfInterest) {
this.rateOfInterest = rateOfInterest;
}
public String getHolderName() {
return holderName;
}
public void setHolderName(String holderName) {
this.holderName = holderName;
}
}
//TotalLoanAmount.java
import java.io.EOFException;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.util.ArrayList;
import java.util.Iterator;
public class TotalLoanAmount {
// main() throwing IOException for input file reading
// throwing ClassNotFoundException for Reading object from file
//EOFException for checking end of file to read
public static void main(String[] args) throws IOException, ClassNotFoundException,EOFException{
//InputStream for creating file instance
FileInputStream fis = new FileInputStream("D:\Exercise17_07.dat");
//Creating Object input stream for reading objects
ObjectInputStream ois = new ObjectInputStream(fis);
//readObject to read the object and cast with Object
ArrayList<Loan> loanData = (ArrayList<Loan>) ois.readObject();
//Iterator to Iterate ArrayList object
Iterator<Loan> loans = loanData.iterator();
double sum=0.0;
while(loans.hasNext()){
Loan loan = loans.next(); // Getting each Loan Object
sum = sum+loan.getLoanAmount(); // Summation of Loan amount
}
System.out.println("Total Loan Amount is:"+sum);
ois.close(); // Closing Streams
fis.close();
}
}
Output:
Total Loan Amount is:2700000.0
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