In Java, data types define the kind of data a variable can hold. Java is a strongly typed and statically typed language, meaning every variable must be declared with a data type before use. Java has two categories of data types: Primitive and Non-Primitive (or Reference) types.
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Which data type would you use to store a single character in Java?
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Question 3 of 15
3. Question
Which of the following is NOT a primitive data type?
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Question 4 of 15
4. Question
What is the default value of a boolean variable in Java (instance variable)?
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Question 5 of 15
5. Question
Which data type should be used to store a large integer value beyond 2,147,483,647?
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Question 6 of 15
6. Question
What is the size of a float in Java?
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Question 7 of 15
7. Question
Which data type is best for currency calculations in Java?
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Question 8 of 15
8. Question
Which of the following data types is used to store true or false values?
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Question 9 of 15
9. Question
What is the size of a char in Java?
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Question 10 of 15
10. Question
Which of the following data types allows storing fractional numbers?
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Question 11 of 15
11. Question
What is the range of values for the byte data type in Java?
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Question 12 of 15
12. Question
Which keyword is used to declare a constant floating-point variable?
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Question 13 of 15
13. Question
Which one of these is not a valid variable declaration?
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Question 14 of 15
14. Question
What is the wrapper class for the primitive int?
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Question 15 of 15
15. Question
Which of these types can store the largest number?
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Summary
These MCQs test your knowledge of Java primitive types, memory size, default values, and usage scenarios. A must-practice set for Java beginners, coding exams, and interviews.
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