Day 2 - C1 summary

Which answer options represent the order in which the following statements can be assembled into a program that will compile successfully? (Choose all that apply.)

• X, Y, Z

• Z, Y, X

• Y, X

• Z, X

• X, Z

Which of the following are true? (Choose all that apply.)

• Bunny is a class.

• bun is a class

• Bunny is a reference to an object.

• bun is a reference to an object.

• The main() method doesn’t run because the parameter nameis incorrect

Suppose we have the following class in the file /my/directory/named/A/Bird.java. Which of the answer options replaces "INSERT CODE HERE" when added independently if we compile from /my/directory?

• package my.directory.named.a;

• package my.directory.named.A;

• package named.a;

• package named.A;

• package A;

What does the following code output when run as java Duck Duck Goose

• Duck Goose

• Duck ArrayIndexOutOfBoundsException

• Goose

• Goose ArrayIndexOutOfBoundsException

• None of the above

Which of the following are true statements about Java? (Choose all that apply.)

• Bug-free code is guaranteed.

• Deprecated features are never removed.

• Multithreaded code is allowed.

• Security is a design goal

• All features in C++ are kept

Which of the following are legal entry point methods that can be run from the command line?

• private static void main(String[] args)

• public static final main(String[] args)

• public void main(String[] args)

• public static void test(String[] args)

• public static void main(String[] args)

Given the following class, which of the following calls print out Blue Jay

• java BirdDisplay Sparrow Blue Jay

• java BirdDisplay Sparrow "Blue Jay"

• java BirdDisplay Blue Jay Sparrow

• java BirdDisplay "Blue Jay" Sparrow

Which of the following are true statements? (Choose all that apply.)

• Java allows operator overloading.

• Java code compiled on Windows can run on Linux.

• Java has pointers to specific locations in memory.

• Java is a procedural language.

• Java is an object-oriented language.

Which of the following are true if this command complete ssuccessfully? (Choose all that apply.)

java MyProgram.java

• A .class file is created

• MyProgram can reference classes in the package java.lang.

• MyProgram can reference classes in the package java.util.

• None of the above

Given the following classes, what is the maximum number of imports that can be removed and have the code still compile?

• 1

• 2

• 3

• 4

• Does not compile