The Complete Java Developer Course: From Beginner to Master - Variables, Constants, and Data Types
Interactive Video
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Information Technology (IT), Architecture
•
University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the primary mechanisms for storing and working with data in programming?
Variables and constants
Classes and objects
Functions and methods
Loops and conditions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in creating a new Java class in IntelliJ?
Open the terminal and type 'javac'
Right-click the source folder and select 'New Java Class'
Click 'File' and choose 'New'
Select 'New Project'
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct way to declare an integer variable in Java?
int age = 19;
int age = '19';
int age: 19;
integer age = 19;
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which naming convention is recommended for variable identifiers in Java?
camelCase
snake_case
PascalCase
UPPERCASE
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the plus symbol when used with strings in Java?
It adds two numbers
It divides two numbers
It concatenates strings
It multiplies two numbers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between 'print' and 'println' in Java?
'println' does not display output
'print' and 'println' are identical
'println' adds a new line after output
'print' adds a new line after output
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a symbolic constant in Java?
A function that returns a constant value
A loop that runs indefinitely
A variable that cannot change its value once initialized
A variable that can change its value
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