Kotlin Variables and Data Types
Kotlin Variables and Data Types - Important Points
| 6. | Which of the following data types in Kotlin is used to represent characters? |
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A. Char
B. String
C. Int
D. Float
View Answer Discuss Work SpaceAnswer: option a
Explanation:
In Kotlin, the Char data type is used to represent characters.
| 7. | What is the output of the following Kotlin code? fun main() { |
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A. Hello, $name!
B. Hello, John!
C. Hello, {name}!
D. Hello, {John}!
View Answer Discuss Work SpaceAnswer: option b
Explanation:
The $name expression in the string template is replaced with the value of the variable "name". So, the output of the code snippet is "Hello, John!".
| 8. | Which of the following is a valid Kotlin variable name? |
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A. myVariableName
B. MyVariableName
C. my-variable-name
D. 1myvariablename
View Answer Discuss Work SpaceAnswer: option a
Explanation:
In Kotlin, variable names should start with a letter or an underscore. Option A is a valid variable name that follows this rule.
| 9. | What is the output of the following Kotlin code? fun main() { |
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A. 5
B. 7
C. num + 2
D. 5 + 2
View Answer Discuss Work SpaceAnswer: option b
Explanation:
The value of the variable "num" is updated to 7 using the assignment operator "+=". So, the output of the code snippet is 7.
| 10. | Which of the following data types in Kotlin is used to represent true or false values? |
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A. Char
B. String
C. Int
D. Boolean
View Answer Discuss Work SpaceAnswer: option d
Explanation:
In Kotlin, the Boolean data type is used to represent true or false values.