1Z0-811 Online Practice Questions and Answers

Given the code fragment:

What is the result?

A. 2

B. 4

C. The program executes an infinite number of times.

D. 3

Which statement is true about a Java method?

A. It must be declared with an access modifier.

B. It cannot be defined within another method.

C. It must accept a parameter and return a value.

D. It cannot be defined as static final.

You have been asked to develop a Java program that prints the elements of an array in reverse order.

Which looping statement cannot be used to meet the requirement?

A. enhanced for

B. standard for

C. while

D. do-while

Given the code fragment:

What is the result?

A. pen pencil erasers paper

B. paper pen pencil erasers

C. A compilation error occurs.

D. A runtime exception is thrown.

Given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to print 0.0?

A. Ball b = null;

B. weight = 0.0;

C. Ball.weight = 0.0;

D. Ball b = new Ball(0.0);

E. Ball b = new Ball();

Identify two features of Java.

A. architecture dependent

B. platform independent

C. single threaded

D. robust

Given the code fragment: What is the result?

A. Selected null flavor.

B. Selected Chocolate flavor.

C. An ArrayIndexOutofBoundsException is thrown at run time.

D. Selected Chocolate flavor. Thank you!

Given:

And the code fragment:

What is the result?

A. A compilation error occurs at line n1.

B. White : null

C. null: null

D. White : White

Given: What is the result?

A. 20

B. 32

C. A compilation error occurs.

D. 21

Given the contents of Student.java:

Which statement is true?

A. The commands: javac Student.java java Student Richard William Java throw an error about a missing Course.class file.

B. The commands: javac Course.java javac Student.java java Course java Student "Richard William" Java are used to print Richard William is studying Java.

C. The commands: javac Student.java java Student Richard William Java are used to print Richard William is studying Java.

D. The commands: javac Student.java java Student "Richard William" Java are used to print Richard William is studying Java.

Given the code fragment:

What is the result?

A. 3 : 1

B. 3 : 2

C. 0 : 1

D. 2 : 0

Given the code fragment:

What is the result?

A. 25.67

B. 25.00

C. 25.7

D. 26

Given the code fragment:

What is the result?

A. lotus jasmine

B. lotus

C. A compilation error occurs.

D. lotus lily

Given the code fragment:

What is the result?

A. A compilation error occurs at line n1.

B. Jack

C. The program prints either Jack or Queen.

D. Queen

Which two components can class declarations include?

A. A list of instance methods

B. The main method

C. Interfaces implemented by the class

D. The public modifier