How do you find the top two maximum numbers in an array?

How do you find the top two maximum numbers in an array?

Java Program to Find the Largest Two Numbers in a Given Array

1. import java.util.Scanner;
2. public class largest_and_second.
3. {
4. public static void main (String[] args)
5. {
6. Scanner scn = new Scanner (System. in);
7. System. out. print(“Enter no. of elements you want in array:”);
8. int n = scn. nextInt();

How do you find the first and second largest numbers in an array?

A simple way to find the largest and second-largest number is that sort the array in descending order and pick its first and second elements. Its first element will be the largest number and the second number will be the second-largest number. The time complexity of this solution is O(n log n).

How do you find the three largest numbers in an array?

Find 3rd Largest Number in Array using Collections

1. import java.util.*;
2. public class ThirdLargestInArrayExample2{
3. public static int getThirdLargest(Integer[] a, int total){
4. List list=Arrays.asList(a);
5. Collections.sort(list);
6. int element=list.get(total-3);
7. return element;
8. }

How do you find the occurrences of a number in an array C++?

std::count() returns number of occurrences of an element in a given range. Returns the number of elements in the range [first,last) that compare equal to val. first, last : Input iterators to the initial and final positions of the sequence of elements.

How to write C program to find largest number in an array?

How to write a C Program to Find Largest Number in an Array?. Or, How to find the largest or biggest number present in the One Dimensional Array. And also the index position of the largest number in an Array. Before going into this C Program to Find Largest Number in an Array example.

How to find common elements between two arrays?

Write a program to find top two maximum numbers in a array. Write a program to sort a map by value. Write a program to find common elements between two arrays. How to swap two numbers without using temporary variable?

How to write program to implement ArrayList?

Write a program to implement ArrayList. Write a program to find maximum repeated words from a file. Wrie a program to find out duplicate characters in a string. Write a program to find top two maximum numbers in a array. Write a program to sort a map by value. Write a program to find common elements between two arrays.

Which is the best interview algorithm in Java?

Find out duplicate number between 1 to N numbers. Find out middle index where sum of both ends are equal. Write a singleton class. Write a program to create deadlock between two threads. Write a program to reverse a string using recursive algorithm. Write a program to reverse a number. Write a program to convert decimal number to binary format.