Math.ceil, Math.floor, Math.round in Java Explained

Learn how to round, floor, and ceil numbers in Java with real-world clarity! 🚀 In this detailed tutorial by SkillUni By Abbas, you’ll understand the working, logic, and syntax of Math.ceil(), Math.floor(), and Math.round() in Java — the essential rounding methods every ICSE Computer Applications student must know. Whether you’re preparing for ICSE Class 9 or Class 10 exams or learning Java programming from scratch, this video makes these mathematical functions easy and practical!

We start with the mathematical intuition behind rounding operations, then explore formal definitions, method information, and Java code examples for each function. You’ll learn how to use:

1. Math.ceil() to round a number upward
2. Math.floor() to round a number downward
3. Math.round() to round a number to the nearest integer

Through step-by-step examples, you’ll see how these methods are applied in real-world Java programs, such as creating a Bill Calculator using Math.ceil() and a Percentage Calculator using Math.round(). This video also touches upon Java’s java.lang package, built-in Math methods, and how rounding and truncation work in programming — all in an engaging, beginner-friendly style!

By the end of this session, you’ll have mastered Java rounding methods and know exactly when to use each one in your own programs. Perfect for CISCE students, Java beginners, and anyone looking to strengthen their foundation in programming logic. 💻

NOTES & RESOURCES
Website : https://sshrizvi.notion.site/CISCE-Computer-By-Abbas-132f18deba7580718ea2f910f8c636c0
Notes : https://sshrizvi.notion.site/L044-Rounding-Methods-Math-Class-27cf18deba758057b2aef6b19e44d5cd
Full Course Playlist : https://www.youtube.com/playlist?list=PLTDTTold5MraCrsIgMMO4ILRkiNkJPVZc
Chapter Playlist : https://www.youtube.com/playlist?list=PLTDTTold5MrYea2ML0rBEgovZNr6XsyJI
TIMESTAMPS
0:00 Introduction
1:20 Math.ceil (Mathematical Intuition)
6:12 Math.ceil (Formal Definition)
7:27 Math.ceil (Method Information)
8:43 Math.ceil (Code)
13:05 Math.floor (Mathematical Intuition)
16:50 Math.floor (Formal Definition)
17:58 Math.floor (Method Information)
18:52 Math.floor (Code)
20:36 Math.round (Mathematical Intuition)
22:55 Math.round (Formal Definition)
23:53 Math.round (Method Information)
25:32 Math.round (Code)
27:54 Programs
28:02 Program No. 1 (Bill Calculator)
33:23 Program No. 2 (Percentage Calculator)
39:33 BYE! BYE!

Видео Math.ceil, Math.floor, Math.round in Java Explained канала SkillUni By Abbas