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    Java Finally Block

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    Hammad Rajput
    The Java finally block is used to ensure that important cleanup code like closing connections or streams is always executed regardless of whether an exception is handled or not. Finally blocks follow try or catch blocks and are executed after any catch blocks. Finally blocks ensure resources are released even if an exception occurs. The document provides examples of finally block usage when exceptions do and do not occur and are handled or not handled.

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    © All Rights Reserved
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    Java Finally Block

    Uploaded by

    Hammad Rajput
    62 views3 pages
    The Java finally block is used to ensure that important cleanup code like closing connections or streams is always executed regardless of whether an exception is handled or not. Finally blocks follow try or catch blocks and are executed after any catch blocks. Finally blocks ensure resources are released even if an exception occurs. The document provides examples of finally block usage when exceptions do and do not occur and are handled or not handled.

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    Java Finally block

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    The Java finally block is used to ensure that important cleanup code like closing connections or streams is always executed regardless of whether an exception is handled or not. Finally blocks follow try or catch blocks and are executed after any catch blocks. Finally blocks ensure resources are released even if an exception occurs. The document provides examples of finally block usage when exceptions do and do not occur and are handled or not handled.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    62 views3 pages

    Java Finally Block

    Uploaded by

    Hammad Rajput
    The Java finally block is used to ensure that important cleanup code like closing connections or streams is always executed regardless of whether an exception is handled or not. Finally blocks follow try or catch blocks and are executed after any catch blocks. Finally blocks ensure resources are released even if an exception occurs. The document provides examples of finally block usage when exceptions do and do not occur and are handled or not handled.

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    © All Rights Reserved
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    1/31/2020 Java Finally block - javatpoint

    Java finally block


    Java finally block is a block that is used to execute important code such as
    closing connection, stream etc.

    Java finally block is always executed whether exception is handled or not.

    Java finally block follows try or catch block.

    Note: If you don't handle exception, before terminating the program,


    JVM executes finally block(if any).

    Why use java finally


    Finally block in java can be used to put "cleanup" code such as closing
    a file, closing connection etc.

    Usage of Java finally


    https://www.javatpoint.com/finally-block-in-exception-handling 1/3
    1/31/2020 Java Finally block - javatpoint

    Let's see the different cases where java finally block can be used.

    Case 1

    Let's see the java finally example where exception doesn't occur.

    class
    TestFinallyBlock{

    Test it Now

    Output:5
    finally block is always executed
    rest of the code...

    Case 2

    Let's see the java finally example where exception occurs and not
    handled.

    class
    TestFinallyBlock1{

    Test it Now

    Output:finally block is always executed


    Exception in thread main java.lang.ArithmeticException:/ by zero

    Case 3

    Let's see the java finally example where exception occurs and handled.

    public class
    TestFinallyBlock2{

    Test it Now

    Output:Exception in thread main java.lang.ArithmeticException:/ by zero


    finally block is always executed
    rest of the code...

    Rule: For each try block there can be zero or more catch blocks, but
    only one finally block.
    https://www.javatpoint.com/finally-block-in-exception-handling 2/3
    1/31/2020 Java Finally block - javatpoint

    Note: The finally block will not be executed if program exits(either by


    calling System.exit() or by causing a fatal error that causes the
    process to abort).

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    https://www.javatpoint.com/finally-block-in-exception-handling 3/3

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