Packages and their Usage in Object Oriented Programming System (OOPS)

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a package in Java?
A variable type in Java
A method in Java
A single Java class
A collection of related classes and interfaces
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the Java Lang package not explicitly imported in Java programs?
It is too large to import
It is only used for advanced Java programming
It is a default package that comes with the Java compiler
It is not necessary for Java programs
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which package must be imported to use the ArrayList class?
Java Lang
Java Util
Java IO
Java Net
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct syntax to import a class from a package?
import package.classname;
include package.classname;
use package.classname;
require package.classname;
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of user-defined packages in Java?
To enhance the speed of Java programs
To replace built-in Java packages
To create new data types
To organize classes and interfaces into a namespace
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you import a user-defined package into another Java class?
By using the 'include' keyword
By recompiling the Java compiler
By copying the package files into the new class
By using the 'import' keyword followed by the package and class name
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a reason for using packages in Java?
To avoid name conflicts
To control access with protected and default access
To make it easier to locate and use classes, interfaces, and sub-packages
To increase the execution speed of Java programs
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