Thursday, 30 June 2016

Java Tutorial : Java Exception handling (The finally block)


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Java Tutorial : Java Exception handling (The finally block) 
FinallyBlockDemo.java
public class FinallyBlockDemo
{

    public static void main(String[] args)
    {

        try
        {
            String str = null;

            // This line will throw NullPointerException
            System.out.println(str.length());

            // This line will throw ArithmeticException
            int a = 5 / 0;

        }

        catch (ArithmeticException | NullPointerException exe)
        {
            exe.printStackTrace();
        }
        finally
        {
            System.out.println("finally block is called.");
            //clean up code.
        }

    }
}
Output
java.lang.NullPointerException
    at FinallyBlockDemo.main(FinallyBlockDemo.java:12)
finally block is called.
Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/ExceptionDemo_The_finally_Block_App.zip?attredirects=0&d=1

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

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/4babce59a384cb4ab41f12b03cd7d11227a4b186/BasicJava/ExceptionDemo_The_finally_Block_App/?at=master

See also:
  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
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  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
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