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In this tutorial, we will learn to write a java program to find the maximum and minimum elements in an array.

For example,

Input: arr[] = [1, 7, 5, 2, 9, 8]

Output:

Minimum array element : 1
Maximum array element : 9

Program 1 : Find maximum and minimum in array java program

• In the below program we are taking array size and array elements from the users as an input to find maximum minimum in array java.
• Now we have two variable max and min to store the maximum and minimum value from the array.
• Here we are iterating the each elements and comparing the previous value stored in max and min.
• If greater value founded then replace it with the old value of max and if smaller value found replace it with the old min value.

import java.util.*; 
class Main
{
    public static void main(String[] args)
    {
    Scanner sc = new Scanner(System.in);
        System.out.print("Enter the size of array: ");
        int size = sc.nextInt();
        int arr[] = new int[size];
        for(int i=0; i<size; i++) {
            System.out.print("Please give value for index "+ i +" : ");
            arr[i] = sc.nextInt();
        }
        int max = arr[0];
        int min = arr[0];
        for (int i = 1; i < arr.length; i++)
        {
            if (arr[i] > max) {
                max = arr[i];
            }
            else if (arr[i] < min) {
                min = arr[i];
            }
        }
        System.out.println("Minimum array element is " + min);
        System.out.println("Maximum array element is " + max);
    }
}

Output