//Write a program to read a file and display only those lines that have the first two characters as '//' (Use try with resources).
import java.io.*;
class TryWithResources{
  	public static void main(String args[]){
    		if(args.length!=1){
     			System.out.println("FILE NAME NOT PROVIDED");
     			return;
    		}
    		try(BufferedReader br=new BufferedReader(new FileReader(args[0]))){
      			String line=br.readLine();
      			while(line!=null){
        			if(line.length()>0){
          				if(line.charAt(0)=='/' && line.charAt(1)=='/'){
            					System.out.println(line);
          				}
        			}
       				line=br.readLine();
     			}
   		}catch(IOException e){
    			System.out.println("Error Opening Files" + e);
   		}
  	}
}