How to Add Elements in Array in Java?

Use a fixed-size array and assign values by index

Declare and initialize an array with values directly

Create a new larger array and copy old elements into it

Use `System.arraycopy()` to copy elements into a new array

Use `Arrays.copyOf()` to resize and add capacity

Use `ArrayList` if you need frequent additions

Add elements to an `ArrayList` with `add()`

Convert an `ArrayList` back to an array with `toArray()`

Use loops to insert multiple elements into array positions

Use `Arrays.fill()` to set the same value across array elements