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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 19 of 32

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Q181.
Which of the following is used to declare,construct, and initlaize an array?
Discuss
Answer: (d).int arr [] = {1, 2, 3};
Q182.
We can calculate the length of an array using ________.
Discuss
Answer: (c).array.length
Q183.
Which of the following is advantage of java array?
Discuss
Answer: (a).Code Optimization
Q184.
In java, array elements are stored in ________ memory locations.
Discuss
Answer: (b).Sequential
Q185.
What will be the output of the program?
class Main
{
public static void main(String args[]) {
  int arr[] = {10, 20, 30, 40, 50};
  for(int i=0; i < arr.length; i++)
  {
   System.out.print(" " + arr[i]);
  }
 }
}
Discuss
Answer: (a).10 20 30 40 50
Q186.
What will be the output of the program?
int arr[] = new int [5];
System.out.print(arr);
Discuss
Answer: (d).Class name@ hashcode in hexadecimal form
Q187.
What will be the output of the program?
class Main
{
public static void main(String args[])
 {
  int array_variable [] = new int[10];
  for (int i = 0; i < 10; ++i)
  {
   array_variable[i] = i;
   System.out.print(array_variable[i] + " ");
   i++;
  }
 }
}
Discuss
Answer: (a).0 2 4 6 8
Q188.
What will be output for the following code?
class Main
{
public static void main(String args[])
 {
  int arr[] = new int[] {0 , 1, 2, 3, 4, 5, 6, 7, 8, 9};
  int n = 6;
  n = arr[arr[n] / 2];
  System.out.print(n);
 } 
}

a.

3

b.

0

c.

6

d.

1

Discuss
Answer: (a).3
Q189.
Predict the output of following Java Program?
class Main
{
 public static void main(String args[])
 {
  char array_variable [] = new char[10];
  for (int i = 0; i < 10; ++i)
  {
   array_variable[i] = 'i';
   System.out.print(array_variable[i] + " ");
  }
 } 
}
Discuss
Answer: (d).i i i i i i i i i i
Q190.
What will be output for the following code?
class Test {
 public static void main(String args[]) {
  int arr[2];
  System.out.println(arr[0]);
  System.out.println(arr[1]);
 }
}
Discuss
Answer: (c).Compiler Error

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