Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition

Chapter 10. Fundamental Classes

Write code using the following methods of the java.lang.Math class: abs(), ceil(), floor(), max(), min(), random(), round(), sin(), cos(), tan(), sqrt().
Describe the significance of the immutability of String objects.
Describe the significance of wrapper classes, including making appropriate selections in the wrapper classes to suit specified behavior requirements, stating the result of executing a fragment of code that includes an instance of one of the wrapper classes, and writing code using the following methods of the wrapper classes (e.g., Integer, Double, etc.):
- doubleValue()
- floatValue()
- intValue()
- longValue()
- parseXxx()
- getXxx()
- toString()
- toHexString()

Get Programmer's Guide to Java™ Certification, A: A Comprehensive Primer, Second Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.