Write a program to input integer elements into an array of size 20 and perform the following operations: 
i) Display largest number from the array
ii) Display smallest number from the array
iii) Display sum of all the elements of the array

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					import java.util.Scanner;

public class program7
	public static void main(String[] args)
	        int i=0,smallest=0,largest=0,sum=0;
		Scanner sc = new Scanner(System.in);
		int[] arr = new int[20];
		System.out.print("Enter 20 numbers in an array: ");
		for (i = 0; i < 20; i++)
			arr[i] = sc.nextInt();
		smallest = arr[0];
		largest = arr[0];
		for (i = 0; i < 20; i++)
			if (arr[i] < smallest) 
				smallest = arr[i]; 
			if (arr[i] > largest)
			largest = arr[i];
			sum = sum + arr[i];
		System.out.println(smallest+" is the Smallest number in the array");
		System.out.println(largest+" is the Largest number in the array ");
		System.out.println(sum+" is the Sum of the given array");


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