HashMaps and arrays

A hashmap sets up the mapping of keys to values. For example,

var map = [];
map["a"] = "Apple";
map["b"] = "Boy";
out.writeln ("map = " + map);
out.writeln ("map[a] = " + map["a"] );
map.remove("a");
out.writeln ("map = " + map);

An array is a list of values. For example,

var array = [];
array.add("a", "b", "c");
out.writeln ("array = " + array);
out.writeln ("array[0] = " + array[0]);
array.remove(0);
out.writeln ("array = " + array);