
Concept explainers
Explanation of Solution
Exception thrown when opening a binary file for output:
When opening a binary file for output, the “FileNotFoundException” and “IOException” will be thrown.
- A “FileNotFoundException” would be thrown if the file could not be opened because, there is already a folder named which was given by the user.
- This exception can be thrown when an application tries to open a file for writing, but that file only for read, or the permissions of the file don’t allow the file to be read by any application.
- An “IOException” is thrown when there is any input/ output file operation issues while application performing particular tasks accessing the files.
- A “FileNotFoundException” is one of the sub class of an “IOException”.
Example:
Consider an example for the above snippet,
//include requried header files
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.util.Scanner;
//definition of "ReadFile" class
public class ReadFile
{
//definition of main method
public static void main(String[] args)throws Exception
{
//declare and set the value to the variable
String filename = null;
//try block
try
{
//create an object for scanner class
Scanner x = new Scanner (System.in);
//get the file name from the user
System.out.println("Enter the file name: ");
filename = x.next();
/*create an object for "ObjectInputStream" stream class*/
ObjectInputStream inputStream = new ObjectInputStream(new FileInputStream(filename));
//display the statement
System.out.println("The first thing in the file " + filename + " is");
//read the input string
String f = inputStream...

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