Java Quiz

Answer 10 questions and see how you score!

Enter Your Name

1. Which memory model ensures consistency?

Java Memory Model

Thread Model

CPU Model

Heap Model

2. Which keyword skips current loop iteration?

continue

skip

pass

next

3. Who developed the Java programming language?

Sun Microsystems

Microsoft

Oracle

IBM

4. Which statement handles multiple exceptions?

multi-catch

try-finally

throw

throws

5. Which JVM flag enables flight recorder?

-XX:+FlightRecorder

-XX:+JFR

-XX:+Profiler

-Xlog

6. What is JVM responsible for?

Running Java bytecode

Writing Java code

Compiling source code

Memory allocation only

7. Which class enables structured concurrency?

StructuredTaskScope

ForkJoinPool

ExecutorService

CompletableFuture

8. Which GC algorithm minimizes pause time?

G1 Garbage Collector

Serial GC

Parallel GC

CMS

9. Which collection stores key-value pairs?

Map

Set

List

Queue

10. Which data type stores true or false?

boolean

int

char

String