Exception In Java

An Exception is an unwanted event that occurs during program execution and disrupts the normal flow of the program.

Program:

class Demo {

    public static void main(String[] args) {

        int a = 10;
        int b = 0;

        System.out.println(a / b);
    }
}

Output:

Why Exceptions Occur?

• Dividing a number by zero

• Accessing an invalid array index

• Opening a file that does not exist

• Null object access

Handling Exceptions:

class Demo {

    public static void main(String[] args) {

        try {
            int a = 10;
            int b = 0;
            System.out.println(a / b);
        }
        catch (ArithmeticException e) {
            System.out.println("Cannot divide by zero");
        }
    }
}

Output: