KwickClips Java · 41 sec · free
Why is (double)(7/2) only 3.0?
Short answer. The brackets make int division happen first, giving 3, which is then widened.
How do you get 3.5?
Cast before dividing: (double)7 / 2.
Where is the cast?
| Code | Prints |
|---|---|
| (double)7 / 2 | 3.5 |
| (double)(7/2) | 3.0 |
Remember
| Brackets decide the order |
| int / int drops decimals |
Two lines, one small bracket. Predict both outputs. First, seven becomes seven point zero, so three point five. Second, seven by two is three first. So three point zero. Brackets decide the order. Int by int drops decimals.
This clip is from the full lesson: Type Conversion in Java: Implicit and Explicit Casting — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ISC Class 11 Computer Science (868), ISC Class 12 Computer Science (868), Programming All levels Java
More KwickClips from this lesson
Why does an int go into a double without a cast?41 sec
Where did the paise go?38 sec
Why does storing byte + byte in a byte fail?43 secDisclaimer. KwickAcademy is free study material for general learning and revision. Parts of it, including the voice-over, are produced with the help of AI tools and may contain errors; if you spot one, please tell us and we will correct it. Syllabus, marks and exam details follow the latest official board publications available to us, and boards can change them at any time, so always confirm against your board's official website and your school. Using this material does not guarantee any marks or result. Board names and trademarks belong to their owners; Kwickprep is not affiliated with or endorsed by any examination board. We never ask for passwords, OTPs or ID numbers. Your progress is saved only in this browser. Full disclaimer · Privacy