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Welcome to the java lang and java io MCQs Page

Dive deep into the fascinating world of java lang and java io with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of java lang and java io, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of java lang and java io, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

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Check out the MCQs below to embark on an enriching journey through java lang and java io. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of java lang and java io. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

java lang and java io MCQs | Page 24 of 26

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Q231.
The delimiter used to separate command-line arguments in Java is ____.

a.

Semicolon (;)

b.

Colon (:)

c.

Space

d.

Comman (,)

Discuss
Answer: (c).Space
Q232.
Can you pass a sentence with multiple words separated by spaces as a single command-line argument in Java?

a.

Yes

b.

No

c.

May be Yes or No

d.

Can't Say

Discuss
Answer: (a).Yes
Q233.
What is the output of the below Java program with command-line arguments? 
public class CommandLineArgs1
{
  public static void main(String[] args)
  {
    for(String str: args)
    {
      System.out.println(str);
    }
    if(args.length == 0)
      System.out.println("No arguments passed");
}

c:\folder>java CommandLineArgs1 car brake horn

a.

car brake horn

b.

car
brake
horn

c.

horn brake car

d.

horn
brake
car

Discuss
Answer: (b).car
brake
horn
Q234.
Is there any limit to the number of spaces between two arguments of command-line arguments in Java?

a.

Yes

b.

No

c.

May be Yes or No

d.

Can't Say

Discuss
Answer: (b).No
Q235.
To pass a string as a command-line argument in Java, you need to surround the text within a pair of ___.

a.

Single Quotes ('abc def')

b.

Double Quotes ("abc def")

c.

Double Spaces( abc def )

d.

Triple Single Quotes ('''abc def''')

Discuss
Answer: (b).Double Quotes ("abc def")
Q236.
Choose the correct way of receiving command-line arguments with in the MAIN method in Java?

a.

public static void main(String[] args)
{

}

b.

public static void main(String args[])
{

}

c.

public static void main(String anyName[])
{

}

d.

All of the above

Discuss
Answer: (d).All of the above
Q237.
What is the output of the below Java program with command-line arguments? 
public class CommandLineArguments2
{
  public static void main(String[] args)
  {
    System.out.println(args[1]);
  }
}

C:\folder>java CommandLineArguments2 TIGER

a.

CommandLineArguments2

b.

TIGER

c.

Compiler error

d.

None of the above

Discuss
Answer: (c).Compiler error
Q238.
Which is the exception or error that is thrown if a non-existing command-line argument is referred to in a Java program?

a.

StackOverflowError

b.

IndexOutOfBoundsException

c.

ArrayIndexOutOfBoundsException

d.

ArithmeticException

Discuss
Answer: (c).ArrayIndexOutOfBoundsException
Q239.
Any type of data that can be typed on a console or ECLIPSE can be passed as a command-line argument. State TRUE or FALSE.

a.

TRUE

b.

FALSE

c.

May be TRUE or FALSE

d.

Can't Say

Discuss
Answer: (a).TRUE
Q240.
Which are the methods used to parse string values to the respective data types in Java?

a.

Boolean.parseBoolean(), Byte.parseByte()

b.

Integer.parseInt(), Long.parseLong()

c.

Float.parseFloat(), Double.parseDouble()

d.

All of the above

Discuss
Answer: (d).All of the above
Page 24 of 26

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