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Welcome to the Data Types,Variables and Arrays MCQs Page

Dive deep into the fascinating world of Data Types,Variables and Arrays with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Types,Variables and Arrays, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Types,Variables and Arrays, 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 Data Types,Variables and Arrays. 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 Data Types,Variables and Arrays. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Types,Variables and Arrays MCQs | Page 3 of 32

Q21.
What is the base of BigDecimal data type?
Discuss
Answer: (c).Base 10
Discuss
Answer: (d).toString uses scientific notation
Q23.
Which of the following is not provided by BigDecimal?
Discuss
Answer: (b).+ operator
Q24.
BigDecimal is a part of which package?
Discuss
Answer: (b).java.math
Discuss
Answer: (d).static variable with value 1 on scale 0
Q26.
Which class is a library of functions to perform arithmetic operations of BigInteger and BigDecimal?
Discuss
Answer: (a).MathContext
Q27.
What is the output of below code snippet?
public class AddDemo 
{
 public static void main(String args[]) 
        {
  BigDecimal b = new BigDecimal("23.43");
  BigDecimal br = new BigDecimal("24");
  BigDecimal bres = b.add(new BigDecimal("450.23"));
  System.out.println("Add: "+bres);
 
  MathContext mc = new MathContext(2, RoundingMode.DOWN);
  BigDecimal bdecMath = b.add(new BigDecimal("450.23"), mc);
  System.out.println("Add using MathContext: "+bdecMath);
 }
}
Discuss
Answer: (b).Add: 684.66
Add using MathContext: 6.8E+2
Q28.
Which of these is long data type literal?
Discuss
Answer: (a).0x99fffL
Q29.
Which of these can be returned by the operator &?
Discuss
Answer: (d).Integer or Boolean
Q30.
Literals in java must be appended by which of these?
Discuss
Answer: (d).L and I
Page 3 of 32

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