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Java Tutorial : Java Exception handling (finally block-BufferedReader)

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Ram N

Posts: 2777
Nickname: ramram
Registered: Jul, 2014

Ram N is Java Programmer
Java Tutorial : Java Exception handling (finally block-BufferedReader) Posted: Jun 23, 2016 3:15 AM
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This post originated from an RSS feed registered with Java Buzz by Ram N.
Original Post: Java Tutorial : Java Exception handling (finally block-BufferedReader)
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FinallyDemo.java
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;

public class FinallyDemo
{
public static void main(String[] args)
{

BufferedReader bufferedReader = null;

try
{

Scanner scanner = new Scanner(System.in);
System.out.print("Enter the fileName : ");
String fileName = scanner.nextLine();
scanner.close();

/*
* Wrap a BufferedReader around FileReader.
*/

bufferedReader = new BufferedReader(new FileReader(
fileName));

/*
* Use the readLine method of the BufferedReader
* to read one line at a time. the readLine
* method returns null when there is nothing
* else to read.
*/

String line = null;

while ((line = bufferedReader.readLine()) != null)
{
System.out.println(line);
}

}
catch (FileNotFoundException fileNotFoundException)
{
fileNotFoundException.printStackTrace();
}
catch (IOException ioException)
{
ioException.printStackTrace();
}
finally
{

System.out.print("Inside finally block....");
if (bufferedReader != null)
{
// Close the BufferedReader when we're done.
try
{
System.out
.println(",close the BufferedReader....");
bufferedReader.close();
}
catch (IOException ioException)
{
ioException.printStackTrace();
}
}
}

}
}
Output
Enter the fileName : myfile.txt
Peter
David
Julia
Inside finally block....,close the BufferedReader....

-----------------------------------------------

Enter the fileName : hi.txt
java.io.FileNotFoundException: hi.txt (The system cannot find the file specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:93)
at java.io.FileReader.<init>(FileReader.java:58)
at FinallyDemo.main(FinallyDemo.java:26)
Inside finally block....
Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/ExceptionDemo_finallyblock_BufferedReader_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ExceptionDemo_finallyblock_BufferedReader_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/969ffd88eb34c4fd42d966118b27490392b78865/BasicJava/ExceptionDemo_finallyblock_BufferedReader_App/?at=master

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