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import java.util.Scanner; public class Main {  public static void main(String[] args) {      Scanner sc = new Scanner(System.in);      boolean av = false;    System.out.println("Enter the Alphabet ");   char ch = sc.next().charAt(0);   for(int i = 'A'; i<='Z'; i++){       if(ch == i){            av = true;           break;           }   }   if(av ==false){for(int i = 'a'; i<='a'; i++){       if(ch == i){            av = true;           break;           }   }}         if(av==true){System.out.println(ch + " is an Alphabet");}   else{System.out.println(ch + " is not ...

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interface Intfac{    void see(); } class One implements Intfac{   public void wish(){     System.out.println("Hello users 👋"); } public void see(){   System.out.println("Hello users Can you 🙈 See"); } } class Main extends One {   public static void main(String[] args) {     System.out.println("Hello world!"); One obj = new One(); obj.wish(); obj.see();      } }

#include <iostream> using namespace std; int main() { int n; long long int sum=0; cin >> n; vector<int> arr(n); for(int arr_i = 0;arr_i < n;arr_i++) { cin >> arr[arr_i]; sum+=arr[arr_i]; } cout<<sum; return 0; }