package generics; import java.util.ArrayList; import java.util.Collection; import java.util.LinkedList; import java.util.List; import java.util.TreeSet; public class ListBeispiel { public static void main(String[] args) { Collection xs = new TreeSet(); //List xs= new ArrayList(); //xs = new LinkedList(); xs.add("Freunde"); xs.add("Römer"); xs.add("Landsleute"); xs.add("leiht"); xs.add("mir"); xs.add("mir"); xs.add("mir"); xs.add("mir"); xs.add("mir"); xs.add("euer"); xs.add("Ohr"); // xs.add(42); System.out.println(xs.size()); // System.out.println(xs.get(3)); System.out.println(xs); for (var x:xs) { System.out.println(x.toUpperCase()); } } }