Exception Handling in Java

Exception handling is an important aspect of Java programming, as it allows us to handle and recover from errors that may occur during program execution. By handling exceptions, we can ensure that our program continues to run smoothly and provide a better user experience.

In Java, exceptions are represented as objects, and the process of handling exceptions is known as exception handling. When an exception occurs, it is thrown or raised by the JVM, and we can write code to catch and handle the exception.

Let's look at an example to understand exception handling in Java:

1// Handling ArithmeticException
2class Main {
3  public static void main(String[] args) {
4    try {
5      int num1 = 10;
6      int num2 = 0;
7      int result = num1 / num2;
8      System.out.println(result);
9    } catch (ArithmeticException e) {
10      System.out.println("Error: Division by zero");
11    }
12  }
13}

In the above code, we are performing division between two numbers num1 and num2. Since num2 is assigned a value of 0, it will result in an ArithmeticException at runtime. To handle this exception, we enclose the code block inside a try-catch block. If the exception occurs, the code inside the catch block will be executed, printing an error message to the console.

Exception handling allows us to gracefully recover from errors and provides a way to handle unexpected situations in our code. It is essential for writing robust and reliable programs.

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class Main {

  public static void main(String[] args) {

    try {

      int num1 = 10;

      int num2 = 0;

      int result = num1 / num2;

      System.out.println(result);

    } catch (ArithmeticException e) {

      System.out.println("Error: Division by zero");

    }

  }

}