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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 26 of 26

Q251.
What is the output of the below Java program with Varargs?
public class Varargs4
{
  Varargs4(int... carnums)
  {
    System.out.println("Inside Varargs(int...)");
  }
  Varargs4(float... prices)
  {
    System.out.println("Inside Varargs(float...)");
  }
  public static void main(String[] args)
  {
    new Varargs4();
  }
}
Discuss
Answer: (a).Inside Varargs(int...)
Q252.
What is the output of the below code snippet?
public class Varargs5
{
  Varargs5(int...weights, boolean yesno)
  {
    System.out.println("AMAZON");
  }
  public static void main(String[] args)
  {
   //new Varargs5(20, true);
  }
}
Discuss
Answer: (b).Error: The variable argument type int of the method Varargs5 must be the last parameter
Q253.
Which is the operator used to represent a Vararg type in a method or constructor in Java?
Discuss
Answer: (c).Three Dots (...)
Q254.
How manymaximum numbers ofVarargs or Variable-Arguments can be there in a method or a constructor in Java?

a.

1

b.

2

c.

8

d.

16

Discuss
Answer: (a).1
Q255.
What is the maximum number of methods or constructors with Varargs in a single Java class?
Discuss
Answer: (d).There is no limit

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