Welcome to Code Java Smart, where we explore efficient and optimized approaches to Java programming. In today's video, we uncover two smart ways to count the digits of a number in Java—using Math.log10 and String.length function. Why These Approaches? Instead of using a traditional loop to count digits one by one, these methods offer a more efficient solution: Math.log10(n) + 1 provides a quick mathematical way to determine digit count. String.valueOf(n).length() leverages Java’s built-in string processing for a simple and readable approach.
In This Video, You’ll Learn:
✅ How Math.log10 helps compute the number of digits efficiently
✅ How String.length() provides an alternative intuitive method
✅ The advantages and edge cases of both approaches
✅ A step-by-step Java implementation
Study resources :
https://github.com/Jain131102/Code-Ja...
https://www.geeksforgeeks.org/program...
Connect with me:
https://bento.me/sourabh-jain
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