An array of integers arr[] , find the maximum and minimum elements in the array.
Examples:
Input : arr[] =[5,9,15,3,65,35];
Output : [3 , 65 ]
Explanation : The minimum element is 3 and the maximum element is 65.
The best approach to find the maximum and minimum element in an array is to iterate through the array by maintaining two variables to track the maximum and minimum element and so far .
import java.util.Arrays;
public class MaxMinArray {
public static void main(String args[]){
int [ ] numbers = { 88, 35, 45 ,99, 78};
//Edge case check for empty array
if ( numbers==null || numbers.length==0 ) {
System.out.ptrintln(“Array is Empty”);
return;
}
// Initialize variable max and min with the first element of the array
int max = numbers[0] ;
int min=numbers[0];
//Iterate through the array starting from the second element
for (int i=1 ; i<numbers.length ; i++ ) {
if ( numbers[i] > max ) {
max=numbers[i]; //update the maximum
}
else if (numbers[i] < min ) {
min=numbers[i]; //update minimum
}
}
System.out.println(“Original Array:”+Arrays.toString(numbers));
System.out.println(“Maximum Element is : “ + max);
System.out.println(“Minimum Element is” +min);
}
}
}
Approach 2:
Using Java 8 Streams
import java.util.Arrays ;
public class MaxMinArr{
public static void main(String args[] ) {
int [] numbers = { 35,66,88,55,49 };
//Find the max and min using built-in Stream methods
int max=Arrays.stream(numbers).max() .getAsInt();
int min = Arrays.stream(numbers).min().getAsInt();
System.out.println(“Maximum element is : “ + max);
System.out.println(“Minimum element is : “ + min);
}
}