Java 2 in 21 Days: Day 2 Java Certification Practice

Day 2: The ABCs of Programming

Certification Practice

Each chapter of the book ends with a Certification Practice question that's comparable to what you could expect to be asked on a Java certification test. Here's the answer for chapter 2:

Answer (c) is correct.

Answer (a) is incorrect. The short and int data types cannot hold a number that large. A short variable can hold numbers from -32,768 to 32,767 and an int variable can hold numbers from -2,147,483,648 to 2,147,483,647.

Answer (b) is incorrect. The int data type holds numbers from -2,147,483,648 to 2,147,483,647.

Answer (d) is incorrect. The byte data type holds numbers from -128 to 127.

Return to Day 2

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Day 2: The ABCs of Programming

Certification Practice