Resolving java.lang.NumberFormatException in Selenium Java Automation Testing

---

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---

The Problem Explained

In the scenario presented, the user tries to compare the total price of two products in a cart. Here’s the specific part of the code that triggers the error:

[[See Video to Reveal this Text or Code Snippet]]

Why Does This Happen?

The NumberFormatException can arise due to a couple of reasons:

The string values retrieved from the webpage (like unitPrice and totalPrice) might include currency symbols or other non-numeric characters (e.g., "$", ",").

The multiplication operation on strings is not valid; you need to handle the conversion before performing mathematical operations.

The Solution

To solve the NumberFormatException, you need to ensure the string values are properly parsed as integers or floating-point numbers. Let’s go through the revised approach step-by-step.

Step 1: Parse and Multiply Properly

Here's how to modify your code to fix the issue:

Corrected Code:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Handling Float Values (If Needed)

For Float Values:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Now, you’re well-equipped to tackle this common issue and continue your journey in automation with Selenium. Happy coding!