vildashnetwork02@gmail.com 654598457


CHAPTERTWELVE

Be focused and you will archive alot. choose your ON CSS

Explore more

history of html

Lorem ipsum dolor sit amet consectetur adipisicing elit. Hic odit rem dolorum molestiae fugit deserunt exercitationem recusandae, itaque ratione harum sit repellat dolor temporibus deleniti non voluptatem nostrum quas? Cumque veniam, molestias id natus pariatur dolores aut nemo iure facilis expedita, temporibus exercitationem ullam ex officiis reiciendis quaerat enim consequuntur.

Error Handling in Java

Explore the different cores of java programming below

Understanding Exceptions

Error handling in Java revolves around the concept of exceptions, which are events that disrupt the normal flow of a program.

Try and Catch Blocks

Java employs the try-catch-finally construct to manage exceptions effectively.




Example 1: Handling Checked Exceptions







This example demonstrates handling a checked exception, IOException, which occurs during file operations. 



import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
        
public class CheckedExceptionExample {
public static void main(String[] args) {
try {
BufferedReader reader = new BufferedReader(new FileReader("example.txt"));
String line = reader.readLine();
System.out.println("File content: " + line);
reader.close();
} catch (IOException e) {
System.out.println("An error occurred while reading the file: " + e.getMessage());
} finally {
System.out.println("File operation attempted.");
}
}
}
Output: 

File operation attempted.




Example 2: Handling Multiple Exceptions



This example shows how to handle multiple exceptions using multiple catch blocks. 

public class MultipleExceptionsExample {
public static void main(String[] args) {
try {
int[] numbers = {1, 2, 3};
System.out.println("Array element: " + numbers[5]); // ArrayIndexOutOfBoundsException
int result = 10 / 0; // ArithmeticException
System.out.println("Result: " + result);
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println("Array index out of bounds: " + e.getMessage());
} catch (ArithmeticException e) {
System.out.println("Cannot divide by zero: " + e.getMessage());
} finally {
System.out.println("Exception handling complete.");
}
}
}
                


15

Example 3: Custom Exception Handling



This example demonstrates creating and handling a custom exception. 

class CustomException extends Exception {
public CustomException(String message) {
super(message);
}
}
                    
public class CustomExceptionExample {
public static void main(String[] args) {
try {
validateAge(15);
} catch (CustomException e) {
System.out.println("Custom Exception Caught: " + e.getMessage());
}
}
                    
public static void validateAge(int age) throws CustomException {
if (age < 18) {
throw new CustomException("Age must be 18 or older to register.");
} else {
System.out.println("Age is valid for registration.");
}
}
}




Example 4: Static and Instance Methods



public class MathUtils {
// Static method
public static int square(int number) {
return number * number;
}
                
// Instance method
public double squareRoot(double number) {
return Math.sqrt(number);
}
                
public static void main(String[] args) {
// Calling static method
int squared = MathUtils.square(4);
System.out.println("Squared value: " + squared);
                
// Calling instance method
MathUtils mathUtils = new MathUtils();
double squareRoot = mathUtils.squareRoot(16.0);
System.out.println("Square root: " + squareRoot);
                    }
                }
Output: 

Squared value: 2
Square root:  4




TESTIMONIES

vildash network team has had alot of impact on others but here are the vildash network team testimonies and expirience while working with the team

favour

am a graphic designer for vildash. when i first join vildash my first dream was programing but i got to know that programing neeeds alot of patients and coding but now my dream is more on the front end so i design graphics and make amazing ui/ux design. vildash is and amazing and great team

MR BK

when i first joined vildash my first vision was that i wanted to upgrade my skills and i really wanted to take a longer time but with vildash i got to know the fastest way in other to be perfect in programing and building amazing projects with ease

MR ENGEBEL

i was nothing in programing and i was discouraged cause i discovered that all programers had laptops but i didnt have and i got discouragecd cause, i thought i didnt evn have that chance to be a programer because of that but when i join vildash i got to know that its not just about the laptop its about the determination and if i have the determination i can archive. and i got to start programing with just my android phone and just like that am gradually getting there

MR LEWIS

vildash network has given me a chance to become a programmer, i now do thinks i didnt know i would be able to do, i now know tyhat i dont have to get distracted i need to stay focused and archive my goals

MR BROSKII

am a good programmer and i didnt have a team but i never knew how working with a team fills like but vildash network has given me the best expirience of how that feel, now i can boast of working with a team and the best team. it feels really greate cause with vildashi have to know that i can use my skills to do more than i dreamed of.

Events

you can now connect and text other users from our database. you just neeed to click bellow to message them

  • connect with programmers

    you can ask for help form them and also you can solve problems with them.

    click here to start chat

  • capabilities

    you can send and recieve messagies. you can send emojies, images, and you can also chat privately with a memeber and you can see when a member is online or offline

    click here to start chat

OUR CODE EDITORS

WE HAVE CODE EDITORS FOR LANGUAGES LIKE C, C#, C++, HTML, CSS, javascript, JAVA VISUAL BASIC

WHAT WE ARE OUT TO DO

We dont just teach you to code we teach you to code and build amazing systems.we are group of expert who wants to promote our field of studies