CODE EXAMPLE FOR JAVA

array arraylist java

// Create
String[] myArray = {"A", "B", "C"};
// constructor no.3, passing a collection
List<String> myArrayList = new ArrayList<>(Arrays.asList("A", "B", "C"));
// Get element
String i = myArray[1];
String j = myArrayList.get(1);
// Get size
int k = myArray.length;     // length is a public field in array, not method.
int l = myArrayList.size();
// Add an element, you can't that w/ array as it is fixed in length
myArrayList.add("D");
// Set an element
myArray[0] = "E";
myArrayList.set(0, "E");
// Remove an element, can't w/ array b/c fixed length
myArrayList.remove(2);  // remove by index
myArrayList.remove("E");    // remove by object