JAVA BootCamp - Day 2

1. Which component is used to compile, debug and execute java program?

• a) JVM
• b) JDK
• c) JIT
• d) JRE

2. Which component is responsible for converting bytecode into machine specific code?

• a) JVM
• b) JDK
• c) JIT
• d) JRE

3. Which component is responsible to run java program?

• a) JVM
• b) JDK
• c) JIT
• d) JRE

4. Which component is responsible to optimize bytecode to machine code?

• a) JVM
• b) JDK
• c) JIT
• d) JRE

5. Which line of code will output the string "Hi"?

• A. Sys.out.print("Hi");
• B. System.out.print("Hi");
• C. System.out.print(Hi);
• D. System.out.print("Hi")

6. Which line of code will output the sum of 7 and 19?

• A. System.out.print(7 + 19);
• B. System.out.print("7 + 19");
• C. system.out.print(7 + 19);
• D. System.out.print("7" + 19)

7. Which of these is used to perform all input & output operations in Java?

• a) streams
• b) Variables
• c) classes
• d) Methods

8. System class is defined in .................

• A. java.util package
• B. java.lang package
• C. java.io package
• D. java.awt package
• E. None of these

9. Which statement is true about java?

• a) Platform independent programming language
• b) Platform dependent programming language
• c) Code dependent programming language
• d) Sequence dependent programming language

10. What is the extension of java code files?

• a) .class
• b) .java
• c) .txt
• d) .js