STEP 1:

Initial min and max values and set them to 0
int min = 0, max = 0;

STEP 2:

Use for loop to iterate each element in the array

for (int i = 0; i < arr.length; i++)

STEP 3:

Within the loop, write if and else if conditions to compare the current element values and set min/max with current element values

if (arr[i] > max) {

max = arr[i];

} else if (arr[i] < min) {

min = arr[i]; }

Java Program Example:

package TestAutomationCentral;

public class MinMaxArray {
    public static void main(String[] args) {
        //TestAutomationCentral.com
        int arr[] = {45, 56, 850, 5, 54, 551, -2};
        int min = 0, max = 0;
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] > max) {
                max = arr[i];
            } else if (arr[i] < min) {
                min = arr[i];
            }
        }
        System.out.println("Min: " + min + "\nMax: " + max);

    }
}

Output:
Min: -2
Max: 850

After following the above tutorials, you can quickly write the code and find an array’s minimum and maximum values. These are commonly asked questions in an interview for Java.