
Use variables to store data : Working with Variables and Data Types – Part 2
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is Java considered a strongly typed language?
Because it supports multiple programming paradigms.
Because it uses strong encryption for data.
Because it allows dynamic typing of variables.
Because it requires explicit data type declarations for variables.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the naming convention for variables in Java?
Variables should start with a capital letter.
Variables should be in all uppercase letters.
Variables should start with a small letter and use camel case.
Variables should be enclosed in double quotes.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a complex data type in Java?
char
int
double
String
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the provided Java code example, what is the initial value assigned to the variable 'score'?
20
15
10
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'var' keyword introduced in Java 10?
To declare a variable that can change its data type.
To declare a variable with a fixed memory location.
To declare a constant variable.
To declare a variable without specifying its data type explicitly.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you declare multiple variables of the same type on a single line in Java?
By separating them with semicolons.
By using the 'and' keyword.
By separating them with commas.
By declaring each variable on a new line.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if you try to assign an integer value to a string variable declared using 'var'?
The program will automatically convert the integer to a string.
The program will throw a compile-time error.
The program will throw a runtime error.
The program will compile successfully.
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