Quick Answer
The answer is char. In Java, primitive data types are the most basic building blocks of data, defined directly by the language rather than as objects. The eight primitives are byte, short, int, long, float, double, boolean, and char, with char being a 16-bit unsigned integer that represents a single Unicode character. On the Oracle Java Foundations 1Z0-811 exam, questions often test your ability to distinguish these primitives from reference types like String or arrays, and a common trap is confusing char with the String class or assuming that wrapper classes like Character are primitives. A reliable memory tip is to remember the mnemonic “BYTE SHort INT LOng FLOAT DOuble BOOLEAN CHAR” — if it’s not one of these eight, it’s not a primitive.
This 1Z0-811 practice question tests your understanding of primitives, strings and operators. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which two of the following are primitives in Java? (Choose two.)
byte
Correct: byte is a primitive type.
char
Correct: char is a primitive type.
String
Why wrong: Incorrect: String is a class.
Integer
Why wrong: Incorrect: Integer is a wrapper class.
Boolean
Why wrong: Incorrect: Boolean (capital B) is the wrapper class; the primitive is 'boolean'.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
byte
A is correct because `byte` is a primitive data type in Java that stores 8-bit signed integers, ranging from -128 to 127. It is one of the eight primitive types defined in the Java language specification, not an object or reference type.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
byte
Why this is correct
Correct: byte is a primitive type.
Related concept
Read the scenario before looking for a memorised answer.
char
Why this is correct
Correct: char is a primitive type.
Related concept
Read the scenario before looking for a memorised answer.
String
Why it's wrong here
Incorrect: String is a class.
Integer
Why it's wrong here
Incorrect: Integer is a wrapper class.
Boolean
Why it's wrong here
Incorrect: Boolean (capital B) is the wrapper class; the primitive is 'boolean'.
Common exam traps
Oracle often tests the distinction between primitives (lowercase names like `boolean`) and their wrapper classes (capitalized names like `Boolean`), causing candidates to mistakenly select the wrapper class as a primitive.
Detailed technical explanation
Java has exactly eight primitives: `byte`, `short`, `int`, `long`, `float`, `double`, `char`, and `boolean`. Primitives are stored directly on the stack (or as fields in objects) and have fixed memory sizes, whereas wrapper classes like `Integer` and `Boolean` are objects that incur heap allocation and garbage collection overhead. A common subtlety is that `char` is an unsigned 16-bit integer (0 to 65535) that can hold a Unicode character, making it a primitive despite its character-like behavior.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 1Z0-811 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Primitives, Strings and Operators — This question tests Primitives, Strings and Operators — Read the scenario before looking for a memorised answer..
The correct answer is: byte — A is correct because `byte` is a primitive data type in Java that stores 8-bit signed integers, ranging from -128 to 127. It is one of the eight primitive types defined in the Java language specification, not an object or reference type.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which two of the following are primitive data types in Java? (Choose two)
easyWhy A: Option A is correct because `boolean` is a primitive data type in Java that can hold only two values: `true` or `false`. It is not an object and does not have methods, making it a fundamental building block for conditional logic.
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Last reviewed: Jun 30, 2026
This 1Z0-811 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-811 exam.
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