In Java, remove empty elements from a list of Strings

Question

In Java, I have an ArrayList of Strings like:

[,Hi, ,How,are,you]

I want to remove the null and empty elements, how to change it so it is l

Answer 1

• This code compiles and runs smoothly.
• It uses no iterator so more readable.
• list is your collection.
• result is filtered form (no null no empty).

---

public static void listRemove() {
    List list = Arrays.asList("", "Hi", "", "How", "are", "you");
    List result = new ArrayList();

    for (String str : list) {
        if (str != null && !str.isEmpty()) {
            result.add(str);
        }
    }

    System.out.println(result);
}