Exception handling in java

Aug 16, 2013Download as odp, pdf

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This document discusses exception handling in Java. It defines an error as an unexpected result during program execution. Exceptions provide a better way to handle errors than errors by stopping normal program flow when an error occurs and handling the exception. There are two main types of exceptions in Java: checked exceptions which are checked at compile time, and unchecked exceptions which are checked at runtime. The try-catch block is used to handle exceptions by executing code that throws exceptions within a try block and catching any exceptions in catch blocks. Finally blocks allow executing code whether or not an exception occurs. Exceptions are thrown using the throw statement which requires a throwable object. Handling exceptions provides advantages like separating error code, grouping error types, consistency, flexibility and simplicity.

Exception Handling In
Java
By Priyanka zope

Content
1:Introduction.
2:Error and Error Handling.
3:Exception.
4:Type Of Exception.
5:Coding Exception.
6:Advantages

Error and Error Handling.
v
An Error is any unexpected result obtained from a program during execution.
v
Unhandled errors may manifest themselves as incorrect
results or behavior, or as abnormal program termination.
v
Errors should be handled by the programmer, to prevent
them from reaching the user.

Exception
Exception- a better error handling.
Exception – an error condition that can occur during the
course of a program
execution
Ø
In Java, exceptions are objects themselves
Exception handling is another form of control structure
(like ifs and switch statements)
Ø
When an error is encountered, the normal flow
of the program is stopped and the exception is
Handled.

Types Of Exception
I:Checked Exception
Checked at compile time.
II:Unchecked Exception
Checked at runtime.

Coding Exception
1: try…..catch block
2:finally
3: throw

Try…catch block
•
To process an exception when it occurs, the line that throws the exception is
executed within a try block.
• A try block is followed by one or more catch clauses, which
contain code to process an exception.
•
The catch statement is used for catching exceptions.
try
{
<try block>
}
catch ( <ExceptionClass> <name> )
{
<catch block>
}
catch ( <ExceptionClass> <name> )
{
<catch block>}

Finally clause
•
A try statement can have an optional clause designated by
the reserved word finally.
• If no exception is generated, the statements in the finally
clause are executed after the statements in the try block
complete.
try {
// statements that throw exceptions
} catch(<exception>) {
// do stuff
} finally {
– // code here runs whether or not catch runs
}

Throw
All methods use the throw statement to throw an exception.
The throw statement requires a single argument: a throwable object.
Throwable objects are instances of any subclass of the Throwable class. Here's
an example of a throw statement.

Problem
IllegalArgumentException: illegal
parameter value
Problem
public class BankAccount
{
public void withdraw(double amount)
{
if (amount > balance)
{
?????????
}
balance = balance - amount;
}
. . .}

Solution
public class BankAccount
{
public void withdraw(double amount)
{
if (amount > balance)
{
IllegalArgumentException exception
= new IllegalArgumentException("Amount
exceeds balance");
throw exception;
}
balance = balance - amount;
}
. . .
}

Advantages
1:Separating Error-Handling Code from "Regular" Code
2:Grouping and Differentiating Error Types
3:consistency
4:flexibility
5:simplicity

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Session | Protecting Your Sensitive Data with Microsoft Purview: Practical Information Protection and DLP Strategies Presenter | Nikki Chapple (MVP| Principal Cloud Architect CloudWay) & Ryan John Murphy (Microsoft) Event | IRMS Conference 2025 Format | Birmingham UK Date | 18-20 May 2025 In this closing keynote session from the IRMS Conference 2025, Nikki Chapple and Ryan John Murphy deliver a compelling and practical guide to data protection, compliance, and information governance using Microsoft Purview. As organizations generate over 2 billion pieces of content daily in Microsoft 365, the need for robust data classification, sensitivity labeling, and Data Loss Prevention (DLP) has never been more urgent. This session addresses the growing challenge of managing unstructured data, with 73% of sensitive content remaining undiscovered and unclassified. Using a mountaineering metaphor, the speakers introduce the “Secure by Default” blueprint—a four-phase maturity model designed to help organizations scale their data security journey with confidence, clarity, and control. 🔐 Key Topics and Microsoft 365 Security Features Covered: Microsoft Purview Information Protection and DLP Sensitivity labels, auto-labeling, and adaptive protection Data discovery, classification, and content labeling DLP for both labeled and unlabeled content SharePoint Advanced Management for workspace governance Microsoft 365 compliance center best practices Real-world case study: reducing 42 sensitivity labels to 4 parent labels Empowering users through training, change management, and adoption strategies 🧭 The Secure by Default Path – Microsoft Purview Maturity Model: Foundational – Apply default sensitivity labels at content creation; train users to manage exceptions; implement DLP for labeled content. Managed – Focus on crown jewel data; use client-side auto-labeling; apply DLP to unlabeled content; enable adaptive protection. Optimized – Auto-label historical content; simulate and test policies; use advanced classifiers to identify sensitive data at scale. Strategic – Conduct operational reviews; identify new labeling scenarios; implement workspace governance using SharePoint Advanced Management. 🎒 Top Takeaways for Information Management Professionals: Start secure. Stay protected. Expand with purpose. Simplify your sensitivity label taxonomy for better adoption. Train your users—they are your first line of defense. Don’t wait for perfection—start small and iterate fast. Align your data protection strategy with business goals and regulatory requirements. 💡 Who Should Watch This Presentation? This session is ideal for compliance officers, IT administrators, records managers, data protection officers (DPOs), security architects, and Microsoft 365 governance leads. Whether you're in the public sector, financial services, healthcare, or education. 🔗 Read the blog: https://nikkichapple.com/irms-conference-2025/

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Exception handling in java

1. Exception Handling In Java By Priyanka zope

2. Content 1:Introduction. 2:Error and Error Handling. 3:Exception. 4:Type Of Exception. 5:Coding Exception. 6:Advantages

3. Error and Error Handling. v An Error is any unexpected result obtained from a program during execution. v Unhandled errors may manifest themselves as incorrect results or behavior, or as abnormal program termination. v Errors should be handled by the programmer, to prevent them from reaching the user.

4. Exception Exception- a better error handling. Exception – an error condition that can occur during the course of a program execution Ø In Java, exceptions are objects themselves Exception handling is another form of control structure (like ifs and switch statements) Ø When an error is encountered, the normal flow of the program is stopped and the exception is Handled.

5. Types Of Exception I:Checked Exception Checked at compile time. II:Unchecked Exception Checked at runtime.

6. Coding Exception 1: try…..catch block 2:finally 3: throw

7. Try…catch block • To process an exception when it occurs, the line that throws the exception is executed within a try block. • A try block is followed by one or more catch clauses, which contain code to process an exception. • The catch statement is used for catching exceptions. try { <try block> } catch ( <ExceptionClass> <name> ) { <catch block> } catch ( <ExceptionClass> <name> ) { <catch block>}

8. Finally clause • A try statement can have an optional clause designated by the reserved word finally. • If no exception is generated, the statements in the finally clause are executed after the statements in the try block complete. try { // statements that throw exceptions } catch(<exception>) { // do stuff } finally { – // code here runs whether or not catch runs }

9. Throw All methods use the throw statement to throw an exception. The throw statement requires a single argument: a throwable object. Throwable objects are instances of any subclass of the Throwable class. Here's an example of a throw statement.

10. Problem IllegalArgumentException: illegal parameter value Problem public class BankAccount { public void withdraw(double amount) { if (amount > balance) { ????????? } balance = balance - amount; } . . .}

11. Solution public class BankAccount { public void withdraw(double amount) { if (amount > balance) { IllegalArgumentException exception = new IllegalArgumentException("Amount exceeds balance"); throw exception; } balance = balance - amount; } . . . }

12. Advantages 1:Separating Error-Handling Code from "Regular" Code 2:Grouping and Differentiating Error Types 3:consistency 4:flexibility 5:simplicity

Exception handling in java

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