How to initialize array at runtime

[Java Tip]

Sometimes you want to initialize array at runtime as you are not aware of its size at start. Following code does exactly that:

Code:

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));	
System.out.println("Please enter size of the array: ");
int size = Integer.parseInt(br.readLine());
int[] array = new int[size];
System.out.println("Size of array is: " + array.length);

Output:

Code:

Size of array is: 5