A Collection is a group of individual objects represented as a single unit. Java provides Collection Framework which defines several classes and interfaces to represent a group of objects as a single unit.
Example:
Input : List = [3, 5, 18, 4, 6] Output: Min value of our list : 3 max value of our list : 18 Input : List = ['a', 'a', 'a'] Output: All elements are equal
Approach:
- Take inputs in the list.
- Create two variables, minimum and maximum.
- Use Collections.min() method and store the return value in min variable.
- Use Collections.max() method and store the return value in max variable.
- If the minimum and maximum variables are equal then print Equal elements.
- Else print minimum and maximum variables.
Below is the implementation of the above approach:
Java
// Java Program to Compare Elements in a Collectionimport java.io.*;import java.util.*; class GFG { public static void main(String[] args) { // List initialization List<Integer> l = new ArrayList<>(); // Add elements in the list l.add(3); l.add(5); l.add(18); l.add(4); l.add(6); // Minimum in the list int minimum = Collections.min(l); // Maximum in the list int maximum = Collections.max(l); if (minimum == maximum) { System.out.println("All elements are equal"); } else { System.out.println("Min value of our list : " + minimum); System.out.println("Max value of our list : " + maximum); } }} |
Output
Min value of our list : 3 Max value of our list : 18
Time Complexity: O(N), where N is the length of the list.
