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Java Array Exercises: Compute the average value of an array of integers except the largest and smallest values

Java Array: Exercise-29 with Solution

Write a Java program to compute the average value of an array of integers except the largest and smallest values.

Pictorial Presentation:

Java Array Exercises: Compute the average value of an array of integers except the largest and smallest values

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise29 {
 public static void main(String[] args)
 {
    int[] array_nums = {5, 7, 2, 4, 9};
	System.out.println("Original Array: "+Arrays.toString(array_nums)); 
	int max = array_nums[0];
	int min = array_nums[0];
	float sum = array_nums[0];
	for(int i = 1; i < array_nums.length; i++)
	{
		sum  += array_nums[i];
		if(array_nums[i] > max)
			max = array_nums[i];
		else if(array_nums[i] < min)
			min = array_nums[i];
	}
	float x = ((sum-max-min) / (array_nums.length - 2));
	System.out.printf("Compute the average value of an array of integers except the largest and smallest values: %.2f",x);
	System.out.print("\n");	
  }
}

Sample Output:

                                                                              
Original Array: [5, 7, 2, 4, 9]                                        
Compute the average value of an array of integers except the largest an
d smallest values: 5.33

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Flowchart: Java exercises: Compute the average value of an array of integers except the largest and smallest values

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Java: Tips of the Day

getEnumMap

Converts to enum to Map where key is the name and value is Enum itself. 

public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) {
    return Arrays.stream(enumClass.getEnumConstants())
            .collect(Collectors.toMap(Enum::name, Function.identity()));
}

Ref: https://bit.ly/3xXcFZt