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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 29 of 32

Q281.
Which are the special symbols used to declare an array in Java?
Discuss
Answer: (c).Square Brackets [ ]
Q282.
Which are the special symbols used to initialize an array at the time of the declaration itself?
Discuss
Answer: (c).Braces { }
Q283.
It is possible to skip initializing some elements of the array during Shorthand Initialization. (TRUE / FALSE)
Discuss
Answer: (a).FALSE
Q284.
In Java, an array can be declared without initialization without mentioning the size. (TRUE / FALSE)
Discuss
Answer: (a).TRUE
Q285.
What is the output of the below Java code snippet with arrays?
static int[] nums; 
public static void main(String args[])
{
  System.out.println(nums.length);
}
Discuss
Answer: (d).Runtime Exception - Null Pointer Exception
Q286.
What is the output of the below Java program?
int[] marks = {35,65,95}; 
System.out.print(marks.length + "," + marks[1]);
Discuss
Answer: (c).3,65
Q287.
What is the output of the below Java code snippet?
int[] balls = {};
System.out.print(balls.length);
Discuss
Answer: (a).0
Q288.
Which is the correct way of knowing Array Size in Java?
Discuss
Answer: (b).//int[] ary;
ary.length
Q289.
What is the output of the below Java program with arrays?
String[] colors = {"RED";"YELLOW";"WHITE"};
System.out.print(colors[2]);
Discuss
Answer: (d).Compiler error
Q290.
What is the output of the below Java program with arrays?
public class Polo {
  public static void main(String args[])
  {
    String[] computer = {"RAM","HDD","MOUSE"};
    String[] parts = {computer[0],computer[2]};
    System.out.print(parts[1]);
  }
}
Discuss
Answer: (c).MOUSE

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