How to Handle a java.lang.NegativeArraySizeException in Java? - Coding

In Java, NegativeArraySizeException is the pre-defined class that can be used to represent the unchecked exception. It is a subclass of the java.lang package, and it can be used to identify that an array was attempted to be created with a negative size, which is not allowed in Java.

In this article, we will learn how to handle a java.lang.NegativeArraySizeException in Java.

Step-by-step Implementation:

Create the class named GfGNegativeArraySize and write the main method into the class.
Create the try block then write the logic into that block.
Create one variable named size and assign the value of -5.
Now, initialize the array with the size of the previously defined.
Write the catch block for NegativeArraySizeException with print with error statement.
Run the program if identifies the array created with a negative size then print the error message.

Program to Handle a java.lang.NegativeArraySizeException in Java

Java

// Java Program to  handle a NegativeArraySizeException  
import java.lang.Exception; 
import java.lang.NegativeArraySizeException; 
  
// Driver Class 
public class GfGNegativeArraySize { 
      // Main Function 
    public static void main(String args[])  
    { 
        try { 
            int size = -5; 
               // Attempting to create an array 
              // With a negative size 
            int[] array = new int[size]; 
        } catch (NegativeArraySizeException e)  
        { 
            // Handle the NegativeArraySizeException 
            System.out.println("Error: Attempted to create an array with a negative size."); 
            // Can add more detailed error handling or logging here if needed 
        } 
    } 
} 

Output

Error: Attempted to create an array with a negative size.

Explanation of the Program:

We have created an array with a negative size.
The attempt to create such an array throws a NegativeArraySizeException.
Catch this exception using a try-catch block.
In the catch block, it handles the exception by printing an error message indicating that an attempt was made to create an array with a negative size.
We can extend the error handling or logging within the catch block as needed for our application.

Reffered: https://www.geeksforgeeks.org

Java

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