How do I change something like this:
CharSequence cs[] = { "foo", "bar" };
to:
CharSequence cs[]; cs.add("foo"); // this is wrong... cs.add("bar"); // this is wrong...
Initializing dynamically allocated arrays. It's easy to initialize a dynamic array to 0. Syntax: int *array{ new int[length]{} }; In the above syntax, the length denotes the number of elements to be added to the array. Since we need to initialize the array to 0, this should be left empty. We can initialize a dynamic array using an initializer ...
Typically, if you want to insert values dynamically, you would use a List<CharSequence>. If the object that you eventually need from the dynamic insertion is in fact a CharSequence [], convert the list to an array. Here's an example:
Method 1: To declare the Java int array and then later populate and use it when required. int [] intArray1; //few lines of code here, for example to determine the size of array int size = 5; intArray1 = new int [size]; int j = 0; for (int i=0; i<size; i++) { intArray1 [i] = ++j; System.out.println (intArray1 [i]); }
A CharSequence is a readable sequence of char values. This interface provides uniform, read-only access to many different kinds of char sequences. A char value represents a character in the Basic Multilingual Plane (BMP) or a surrogate.
Use a List object to manage items and when you have all the elements then convert to a CharSequence. Something like this:
List<String> listItems = new ArrayList<String>(); listItems.add("Item1"); listItems.add("Item2"); listItems.add("Item3"); final CharSequence[] charSequenceItems = listItems.toArray(new CharSequence[listItems.size()]);
You are almost there. You need to allocate space for the entries, which is automatically done for you in the initializing case above.
CharSequence cs[]; cs = new String[2]; cs[0] = "foo"; cs[1] = "bar";
Actually CharSequence is an Interface and can thus not directly be created, but String as one of its implementations can.
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