Answer 1

Something like this may be what you're looking for:

import java.util.Scanner;
import java.util.List;
import java.util.ArrayList;

public class Program
{
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
List<String> list = new ArrayList<>();
String str = "";

while(true) {
str = sc.nextLine().trim();

if(str.toLowerCase().equals("end"))
break;

list.add(str);
}

for(String s: list) {
System.out.println(s);
}
sc.close();
}
}