Day 1 Quiz

What is the role of JVM in Java?

• Compile the code
• Interpret bytecode and execute
• Translate Java to C++
• Edit source code

What does JRE consist of?

• Compiler and debugger
• JVM and libraries
• IDE and debugger
• JVM and source code

What is the output of compiling a `.java` file?

• .exe file
• .class file
• .java file
• .jar file

Which component runs the `.class` file?

• JDK
• JRE
• JVM
• JIT

Which Java component includes development tools?

• JRE
• JVM
• JDK
• JavaBeans

Which part of Java ensures platform independence?

• JVM
• JDK
• JRE
• API

What will happen if there is no `main` method in a class?

• Compilation error
• Runtime error
• Infinite loop
• Program will run without output

Which tool is used to compile Java programs?

• java
• javac
• javadoc
• jdb

Which data type is used for true/false values?

• int
• char
• boolean
• float

What is the size of a `char` in Java?

• 1 byte
• 2 bytes
• 4 bytes
• 8 bytes