Java ArrayStoreException

Introduction

ArrayStoreException in Java is a runtime exception that occurs when an attempt is made to store the wrong type of object in an array of objects. It helps identify type mismatch errors in arrays.

Table of Contents

1. What is ArrayStoreException?
2. Common Causes
3. Handling ArrayStoreException
4. Examples of ArrayStoreException
5. Conclusion

1. What is ArrayStoreException?

ArrayStoreException is thrown to indicate that an attempt has been made to store an incompatible type in an array of objects. This exception ensures type safety within arrays.

2. Common Causes

• Storing an object of an incompatible type in an array.

3. Handling ArrayStoreException

To handle ArrayStoreException, use a try-catch block to catch the exception and take appropriate actions, such as logging the error or notifying the user.

4. Examples of ArrayStoreException

Example: Storing Incompatible Types

This example demonstrates handling an ArrayStoreException when trying to store an incompatible object in an array.

public class ArrayStoreExample {
    public static void main(String[] args) {
        Object[] array = new String[3];

        try {
            array[0] = "Hello"; // Valid
            array[1] = 100; // Invalid: Causes ArrayStoreException
        } catch (ArrayStoreException e) {
            System.out.println("Error: Incompatible type stored in array.");
        }
    }
}

Output:

Error: Incompatible type stored in array.

Conclusion

ArrayStoreException is an important mechanism in Java for ensuring type safety in arrays. By properly catching and managing this exception, you can prevent type mismatch errors, leading to more robust and type-safe code.