The JVM and the Java Ecosystem

Question 1

What is the process of converting a .java file into a .class file called?

a) Executing
b) Compiling
c) Debugging
d) Interpreting

Answer 1

b) Compiling

Question 2

What is the output of the Java compiler?

a) .exe file
b) .java file
c) .class file
d) .bin file

Answer 2

c) .class file

Question 3

What phase is commonly referred to as the build phase in Java development?

a) Running the program
b) Writing the source code
c) Compiling the program
d) Debugging the code

Answer 3

c) Compiling the program

Question 4

Which of the following is NOT a programming language that can be compiled into Java bytecode?

a) Groovy
b) Scala
c) Python
d) Kotlin

Answer 4

c) Python

Question 5

Which language is recommended for Android development and can be compiled into Java bytecode?

a) Groovy
b) Scala
c) Kotlin
d) JavaScript

Answer 5

c) Kotlin

Question 6

What does the Java Runtime Environment (JRE) include?

a) Only the Java compiler
b) Java libraries and the JVM
c) Only the JVM
d) Java libraries and the JDK

Answer 6

b) Java libraries and the JVM

Question 7

What is required to develop and compile Java programs?

a) JVM
b) JRE
c) JDK
d) Math library

Answer 7

c) JDK

Question 8

Which of the following is included in the Java Development Kit (JDK) but not in the JRE?

a) Java Virtual Machine
b) Java compiler
c) Java libraries
d) Math library

Answer 8

b) Java compiler

Question 9

Which tool in the JDK helps with finding errors in Java programs?

a) Java Virtual Machine
b) Math library
c) Java debugger
d) Java runtime environment

Answer 9

c) Java debugger

Question 10

What is one of the key features of the JVM?

a) It allows Java programs to run on any platform with a JVM
b) It converts Java code directly into hardware instructions
c) It only runs Java programs on Windows
d) It compiles Java code into bytecode

Answer 10

a) It allows Java programs to run on any platform with a JVM