Forumchem - Forum with AI(ALICE BOT & HAL9000) and TTS

Jave novice Create a class named FileDisplay.
What did i do wrong?

public class FileDisplay
public static void main(String[]args) throws FileNotFoundException

File file = new File("Feud.txt");

PrintWriter output = new PrintWriter("Feud.txt");

output.println("I do not like arguments at all");
output.println("Well...This is one of communication skills people should have.");
output.println("Your frontal lobe is not fully developed or it would have been shrunk.");
output.println("Hg");
output.println("Well...you do not know the history of Hg then...I am immortal");
output.close();

File input = new File("DislayWithLineNumbers.txt");
Scanner fileinput = new Scanner(input);

System.out.println(fileinput.nextLine());
System.out.println(fileinput.nextLine());
System.out.println(fileinput.nextLine());
System.out.println(fileinput.nextLine());
System.out.println(fileinput.nextLine());

while (fileinput.hasNext())
System.out.println(fileinput.nextLine());

File displayWithLineNumbers = new File ("DisplayWithLineNumbers.txt");
fileinput = new Scanner(displayWithLineNumbers);

int sum = 1;
int numberOfLines = 1;


while (fileinput.hasNext())
sum += fileinput.nextInt();

numberOfLines ++;

System.out.println(numberOfLines);