1Z0-811 Online Practice Questions and Answers

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.

Given the code fragment:

What is the result?

A. Unknown issues. Invalid divisor.

B. Unknown issues.

C. Invalid divisor.

D. A compilation error occurs.

Given the code fragment:

What is the result?

A. 3

B. A compilation error occurs.

C. 2

D. 0

Given: What is the result?

A. 100

B. A compilation error occurs at line n2.

C. A compilation error occurs at line n1.

D. 100

You have a microprocessor board, such as Raspberry PI, wired to control a drone.

Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?

A. Java Micro Edition

B. Java Standard Edition with a Compact Profile

C. Java Enterprise Edition

D. Java SE Embedded

Identify two class variables.

A. private static int numberOfSquares = 20;

B. public static int counter = 0;

C. private Measure cm;

D. public int size = 10;

E. int scale = 35;

Given these class definitions:

Which class or classes compile?

A. only MyClassB, MyClassC, and MyClassD

B. only MyClassB

C. MyClassA, MyClassB, MyClassC, and MyClassD

D. only MyClassB and MyClassD

Given the code fragment: What is the result?

A. true true

B. true false

C. false false

D. false true

Given:

What is the result?

A. Compilation fails. To make it compile, replace line n1 with var1 = 0;

B. Compilation fails. To make it compile, replace line n2 with var2 = 0;

C. 0

D. Nothing is printed.

Identify three features of the Java programming language.

A. distributed

B. direct memory management

C. multithreaded

D. strongly typed

E. dynamically typed