12 Interop & Idioms questions from the Kotlin bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.syntax embedding a variable or expression inside a literal using a dollar sign prefix
B.a marker exposing a companion member as a true static method for Java callers
C.the seamless ability to call existing JVM library code and be called back from it without wrappers
D.syntax that unpacks an object's components into several variables in one statement
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2. Which term means: "syntax embedding a variable or expression inside a literal using a dollar sign prefix"?
Junior
A.Destructuring declaration
B.String template
C.JvmStatic annotation
D.Java interoperability
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.String template — syntax that unpacks an object's components into several variables in one statement
B.String template — the seamless ability to call existing JVM library code and be called back from it without wrappers
C.String template — syntax embedding a variable or expression inside a literal using a dollar sign prefix
D.String template — a marker exposing a companion member as a true static method for Java callers
Answer + AI explanation with Pro
4. What is Destructuring declaration?
Mid
A.a marker exposing a companion member as a true static method for Java callers
B.syntax that unpacks an object's components into several variables in one statement
C.the seamless ability to call existing JVM library code and be called back from it without wrappers
D.syntax embedding a variable or expression inside a literal using a dollar sign prefix
Answer + AI explanation with Pro
5. Which term means: "syntax that unpacks an object's components into several variables in one statement"?
Mid
A.Destructuring declaration
B.JvmStatic annotation
C.Java interoperability
D.String template
Answer + AI explanation with Pro
6. Which statement is correct?
Mid
A.Destructuring declaration — syntax that unpacks an object's components into several variables in one statement
B.Destructuring declaration — syntax embedding a variable or expression inside a literal using a dollar sign prefix
C.Destructuring declaration — the seamless ability to call existing JVM library code and be called back from it without wrappers
D.Destructuring declaration — a marker exposing a companion member as a true static method for Java callers
Answer + AI explanation with Pro
7. What is Java interoperability?
Senior
A.syntax that unpacks an object's components into several variables in one statement
B.syntax embedding a variable or expression inside a literal using a dollar sign prefix
C.a marker exposing a companion member as a true static method for Java callers
D.the seamless ability to call existing JVM library code and be called back from it without wrappers
Answer + AI explanation with Pro
8. Which term means: "the seamless ability to call existing JVM library code and be called back from it without wrappers"?
Senior
A.JvmStatic annotation
B.Java interoperability
C.String template
D.Destructuring declaration
Answer + AI explanation with Pro
9. Which statement is correct?
Senior
A.Java interoperability — syntax that unpacks an object's components into several variables in one statement
B.Java interoperability — the seamless ability to call existing JVM library code and be called back from it without wrappers
C.Java interoperability — a marker exposing a companion member as a true static method for Java callers
D.Java interoperability — syntax embedding a variable or expression inside a literal using a dollar sign prefix
Answer + AI explanation with Pro
10. What is JvmStatic annotation?
Senior
A.the seamless ability to call existing JVM library code and be called back from it without wrappers
B.a marker exposing a companion member as a true static method for Java callers
C.syntax that unpacks an object's components into several variables in one statement
D.syntax embedding a variable or expression inside a literal using a dollar sign prefix
Answer + AI explanation with Pro
11. Which term means: "a marker exposing a companion member as a true static method for Java callers"?
Senior
A.String template
B.Destructuring declaration
C.JvmStatic annotation
D.Java interoperability
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.JvmStatic annotation — a marker exposing a companion member as a true static method for Java callers
B.JvmStatic annotation — syntax embedding a variable or expression inside a literal using a dollar sign prefix
C.JvmStatic annotation — syntax that unpacks an object's components into several variables in one statement
D.JvmStatic annotation — the seamless ability to call existing JVM library code and be called back from it without wrappers
Answer + AI explanation with Pro
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