What are the interview questions in array in Java?
Array Interview Questions in Java for Freshers
- 1) On which memory arrays are created in Java?
- 2) Can we call the main() method of a class from another class?
- 3) What is an array in Java?
- 4) What are the types of an array?
- 5) Is it possible to declare array size as negative?
How do you solve an array interview question?
- Peak Element.
- Find the minimum and maximum element in an array.
- Write a program to reverse the array.
- Write a program to sort the given array.
- Find the Kth largest and Kth smallest number in an array.
- Find the occurrence of an integer in the array.
- Sort the array of 0s, 1s, and 2s.
- Subarray with given Sum.
How do you describe an array in interview?
1) What do you mean by an Array?
- Array is a set of similar data type.
- Arrays objects store multiple variables with the same type.
- It can hold primitive types and object references.
- Arrays are always fixed.
Can you change the size of the array once you define it or can you insert or delete the elements after creating an array and why?
If you create an array by initializing its values directly, the size will be the number of elements in it. Thus the size of the array is determined at the time of its creation or, initialization once it is done you cannot change the size of the array.
What is an array answer?
An array is a data structure that contains a group of elements. Typically these elements are all of the same data type, such as an integer or string. Arrays are commonly used in computer programs to organize data so that a related set of values can be easily sorted or searched.
Which is the biggest problem of array?
The biggest limitation of array is that we need to define the size of array beforehand. This is possible only if the maximum size of array is known beforehand and may lead to memory wastage. The solution is to use Dynamic Array or Linked List.