Java: Get the difference between the largest and smallest values in an array of integers

Java Array: Exercise-28 with Solution

Write a Java program to get the difference between the largest and smallest values in an array of integers. The array must have a length of at least 1.

Pictorial Presentation:

Sample Solution:

Java Code:

import java.util.Arrays; 
 public class Exercise28 {
 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_val = array_nums[0];
	int min = array_nums[0];
	for(int i = 1; i < array_nums.length; i++)
	{
		if(array_nums[i] > max_val)
			max_val = array_nums[i];
		else if(array_nums[i] < min)
			min = array_nums[i];
	}
	System.out.println("Difference between the largest and smallest values of the said array: "+(max_val-min));	
 }
}

Sample Output:

                                                                              
Original Array: [5, 7, 2, 4, 9]                                        
Difference between the largest and smallest values of the said array: 7

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