Question

How do you:
1. Initialize (create) an Array.
2. Push a String value into it.
3. Push another String value into it.
4. Dump it to get its contents.

Answer 1

Arrays in Java are a fixed size, determined when you create them. As such, they have no push methods.

It sounds like you want a List instead, most likely an ArrayList<String>. Lists have an add function for adding new elements.

The Java Collections trail has more information about the various types of collections (List, Set, and Map).

Lists and Sets work with Java’s for each operator:

List<String> myList = new ArrayList<String>();
//List<String> myList = new LinkedList<String>();

myList.add("One");
myList.add("Two");

// Because we're using a Generic collection, the compiler
// inserts a cast on the next line for you
for (String current : myList) {
    // This section happens once for each elements in myList
    System.out.println(current);
}
// should print "One" and "Two" (without quotes) on separate lines