876 middle of the linked list java

1. How do you find the middle of a linked list in Java?
2. How do you find the middle element of a linked list in a single iteration?
3. How do you remove the middle of a linked list in Java?
4. How to find out middle element in linked list without using count?
5. How do you find the middle element of an array?
6. How do you make a middle node the head of a linked list?
7. How do you find the middle value of an array in Java?
8. How to find middle element of array without using its length?
9. How do you find the middle element?
10. How do you find the middle element of an array?
11. How do you find the index of an element in a linked list?
12. How do you find the middle of two values?
13. What are middle elements?
14. Can I add a element in middle in list?
15. How to remove middle element from stack in Java?
16. How to remove middle element from array in Java?

How do you find the middle of a linked list in Java?

First, we will find the total size of the linked list. Then, we divide the total size by 2, and then whatever number comes, we move the pointer, starting from the head node, to that number of times. The node at which the pointer is pointing is the middle node of the linked list.

How do you find the middle element of a linked list in a single iteration?

In each iteration, the ptr1 will access the two nodes and the ptr2 will access the single node of the linked list. Now, when the ptr1 reaches the end of the linked list, the ptr2 will be in the middle. In this way, we are able to get the middle of linked list in a single iteration.

How do you remove the middle of a linked list in Java?

If there are even nodes, then there would be two middle nodes, we need to delete the second middle element. For example, if given linked list is 1->2->3->4->5->6 then it should be modified to 1->2->3->5->6. If the input linked list is NULL, then it should remain NULL.

How to find out middle element in linked list without using count?

The idea is two use two pointers, slow and fast, respectively. Move the slow pointer by one step and the fast pointer by two steps. Proceeding this way, when the fast pointer will reach the end of the Linked List, the slow pointer will be at the middle of the Linked List.

How do you find the middle element of an array?

Given an integer array of size n and a number k. If the indexing is 1 based then the middle element of the array is the element at index (n + 1) / 2, if n is odd otherwise n / 2.

How do you make a middle node the head of a linked list?

The idea is to first find middle of a linked list using two pointers, first one moves one at a time and second one moves two at a time. When second pointer reaches end, first reaches middle. We also keep track of previous of first pointer so that we can remove middle node from its current position and can make it head.

How do you find the middle value of an array in Java?

int mid = firstIndex + (lastIndex-firstIndex)/2 , will give you the mid of the array.

How to find middle element of array without using its length?

one way you can find midpoint of array is (for odd length array) just use two loops ,1st loop start traverse from 0 index and the other (nested) loop will traverse from last index of array. Now just compare elements when it comes same ...that will be the mid point of array. i.e if(arr[i]== arr[j]) .

How do you find the middle element?

Auxiliary Given a singly linked list, find the middle of the linked list. For example, if the given linked list is 1->2->3->4->5 then the output should be 3. If there are even nodes, then there would be two middle nodes, we need to print the second middle element.

How do you find the middle element of an array?

Given an integer array of size n and a number k. If the indexing is 1 based then the middle element of the array is the element at index (n + 1) / 2, if n is odd otherwise n / 2.

How do you find the index of an element in a linked list?

LinkedList indexOf() method in Java

LinkedList. indexOf(Object element) method is used to check and find the occurrence of a particular element in the list. If the element is present then the index of the first occurrence of the element is returned otherwise -1 is returned if the list does not contain the element.

How do you find the middle of two values?

To find the midpoint of any range, add the two numbers together and divide by 2. In this instance, 0 + 5 = 5, 5 / 2 = 2.5.

What are middle elements?

Metalloids are those elements which show the properties of metals as well as the properties of nonmetals, are known as metalloids. Transition elements are placed in the middle of the periodic table.

Can I add a element in middle in list?

Elements can be added in the middle of an ArrayList by using the java. util. ArrayList. add() method.

How to remove middle element from stack in Java?

You can use basic stack operations like push(), pop() and empty(). For example : INPUT : STACK [ ] = [ 1 , 2 , 3 , 4 , 5 ] , N = 5OUTPUT: [ 1 , 2 , 4, 5 ]The above example contains an odd number of elements, hence the middle element is clearly the N / 2th element, which is removed from the stack in the output.

How to remove middle element from array in Java?

To remove an element from an array, we first convert the array to an ArrayList and then use the 'remove' method of ArrayList to remove the element at a particular index. Once removed, we convert the ArrayList back to the array.