Java Program for File Input/Output, Serialization, and Deserialization

This Java assignment comprises two parts. The first part focuses on object serialization and deserialization, where a `MyInfo` class is created and its objects are written to a file using `FileOutputStream` and `ObjectOutputStream`. The program then reads the object from the file using `FileInputStream` and `ObjectInputStream`, demonstrating the process of deserialization. The second part involves file input/output and string manipulation. It reads a file, counts the occurrences of the strings “CSE1007” and “JAVA”, and prints the counts to the console. The program uses `FileInputStream` to read the file and splits the content based on the target strings to count their occurrences. This assignment provides practical examples of file handling and object serialization in Java.

NAME:SHRAVAN S
REGISTRATION NUMBER:19BCE2548
1)Write your informaton [as string as well as MyInfo Class object] like regno, name, cgpa and phno
into a fle and read from the fle and print in the console. Use Serializaton and Deserializaton in
the program.
package com.package2;
import java.io.*;
class MyInfo implements Serializable{
String name, registration;
double cgpa;
long phone;
public MyInfo(String Name,String regno,double cgpa,long phno){
this.name =Name;
this.registration =regno;
this.cgpa=cgpa;
this.phone =phno;
}
}
public class Main{
public static void main(String[] args) throws
FileNotFoundException,IOException,ClassNotFoundException{
MyInfo s1=new MyInfo("Shravan","19BCE2548",8.21,769584477);
FileOutputStream fout=new FileOutputStream("C:\\Users\\SID\\Documents\\
MyInfo.txt");
FileInputStream fin=new FileInputStream("C:\\Users\\SID\\Documents\\
MyInfo.txt");
ObjectOutputStream out=new ObjectOutputStream(fout);
out.writeObject(s1);
out.flush();
System.out.println("Serialization successful!");
System.out.println();
ObjectInputStream in=new ObjectInputStream(fin);
MyInfo s2=(MyInfo)in.readObject();
System.out.println(s2.registration +" "+s2.name +" "+s2.cgpa+" "+s2.phone);
System.out.println("Deserialization successful!");
}
}
OUTPUT:

2)Traverse a fle and count the words “CSE1007” and “JAVA”, print the counts in the console
package com.package2;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {

int JavaCount=0,TxtCount=0;
File file = new File("///C:/Users/SID/Documents/mast.txt");
FileInputStream Sid = new FileInputStream(file);
byte[] bytesArray = new byte[(int)file.length()];
Sid.read(bytesArray);
String sid = new String(bytesArray);
String [] num = sid.split("CSE1007");
String [] num1=sid.split("JAVA");
System.out.println("Number of JAVA characters " +num1.length);
System.out.println("Number of CSE1007 characters " +num.length);
}
}
OUTPUT: