Command line arguments

import java.util.*;
public class StringDemo{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    System.out.println("Arguments are "+Arrays.toString(args));
    System.out.println("Enter key: ");
    String key=sc.nextInt();
    for(int i=0;i<args.length;i++){
      if(key.equals(args[i])){
        System.out.println("Found");
      }
      break;
    }
  }
}