Java Exception Handling

public class MyCustomException extends RuntimeException { public MyCustomException(String message) { super(message); } } class Test { public static void main(String[] args) { Test test = new Test(); try { test.reserveSeats(8); } catch (MyCustomException e) { System.out.println(“Exception occurred with message: ” + e.getMessage()); } } private void reserveSeats(int numberOfSeats) { if (numberOfSeats > 5) { throw…

throw new Exception(); class Test { public static void main(String[] args) { Test test = new Test(); test.reserveSeats(8); } private void reserveSeats(int numberOfSeats) { if (numberOfSeats > 5) { throw new IllegalArgumentException(“No more than 5 seats can be reserved.”); } else { System.out.println(“Reservation successful!”); } } } Output: Exception in thread “main” java.lang.IllegalArgumentException: No more…

void methodName() throws Exception class Test { public static void main(String[] args) { } private void validateStatus(String status) { if (status.equals(“invalid”)) { throw new IOException(“Status of the file is invalid, the stream is closed!”); } } } class Test { public static void main(String[] args) { Test test = new Test(); test.validateStatus(“valid”); // OK test.validateStatus(“invalid”);…

throw new Exception(); class Test { public static void main(String[] args) { reserveSeat(new User(“Steve”, “Johnson”, false, 32)); // OK reserveSeat(new User(“Mike”, “Lawson”, true, 16)); // Exception will occur } private static void reserveSeat(User user) { if (user.getAge() < 18) { throw new IllegalArgumentException(“The user is under 18 years old!”); } } } class User {…

try { //Statements that may cause an exception } catch { //Handling exception } finally { //Statements to be executed } class Test { public static void main(String[] args) { try { System.out.println(20 / 0); // this will throw ArithmeticException } catch (ArithmeticException ae) { System.out.println(“ArithmeticException occurred!”); } finally { System.out.println(“Finally block…”); } } }…

Java try-catch blocks are an essential part of Java programming, used for handling exceptions that might occur during program execution. When used correctly, try-catch blocks can help you write more robust and error-free code. In this tutorial, I will explain what Java try-catch blocks are, how they work, and how to use them effectively. I’ll…

Exception handling is an essential part of any robust software application, and Java is no exception. In Java, an exception is an event that interrupts the normal flow of a program and can occur at runtime. It could be due to various reasons, such as incorrect input, lack of resources, or programming errors. Exception handling…