Can a function have the same name as a variable in Java?

Yes, but it may cause a compilation error.

Which of the following is the correct way to pass an array to a function in Java?

void myFunction(int[] myArray) {}

Can a function in Java have more than one parameter?

Yes, a function can have multiple parameters of different data types.

What is the purpose of the void keyword in the function declaration?

It specifies that the function returns nothing.

What is the purpose of user-defined packages in Java?

To organize and group related classes and interfaces

What is the purpose of the catch block in exception handling?

To define a block of code that handles a specific type of exception

What is the purpose of the Math class in Java?

To perform mathematical calculations and operations

Which of the following statements is true regarding an abstract class in Java?

An abstract class can only contain abstract methods.

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Java Quiz - 2

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Questions 15

Answers

1
What is an exception in Java?
A logical error
A runtime error
A syntax error
A warning message
2
What is the purpose of a constructor in Java?
To define methods for a class
To declare constants within a class
To create instances of a class
To declare variables within a class
3
Which of the following methods is used to create a new thread in Java?
wait()
sleep()
start()
run()
4
Which of the following is an unchecked exception?
NullPointerException
IOException
FileNotFoundException
ClassNotFoundException
5
Which package does the Math class belong to in Java?
java.math
java.text
java.util
java.lang
6
Can a function have the same name as a variable in Java?
Yes, but it may cause a compilation error.
Yes, but only if the variable is declared with the final keyword.
Yes, but it is not recommended for readability purposes.
No, function and variable names must be unique in Java.
7
Which of the following is the correct way to pass an array to a function in Java?
void myFunction(int myArray[]) {}
void myFunction(int[] myArray[]) {}
void myFunction(array myArray) {}
void myFunction(int[] myArray) {}
8
What is the term for providing a specific implementation for a method that is already defined in a superclass?
Inheriting
Encapsulating
Overriding
Overloading
9
Can a function in Java have more than one parameter?
Yes, but the number of parameters must not exceed three.
Yes, but only if all parameters are of the same data type.
Yes, a function can have multiple parameters of different data types.
No, a function can have only one parameter.
10
What is the purpose of the void keyword in the function declaration?
It specifies that the function returns a boolean value.
It indicates that the function returns an integer value.
It indicates that the function returns a character value.
It specifies that the function returns nothing.
11
What is the purpose of user-defined packages in Java?
To provide additional functionality to the Java language
To define mathematical operations and calculations
To import built-in packages into your application
To organize and group related classes and interfaces
12
What is the purpose of the catch block in exception handling?
To throw an exception
To define a block of code that is skipped if an exception occurs
To define a block of code that handles a specific type of exception
To define a block of code that always executes
13
What is the purpose of the Math class in Java?
To manipulate strings and characters
To handle input and output operations
To perform mathematical calculations and operations
To manage date and time operations
14
In Java, which keyword is used to define a class as a subclass of another class?
subclass
extend
super
inherits
15
Which of the following statements is true regarding an abstract class in Java?
An abstract class can only contain abstract methods.
An abstract class cannot have subclasses.
An abstract class cannot have any methods.
An abstract class can be instantiated directly using the new keyword.

Java Quiz - 2 Flashcards | StudBud