How can i add an element to an array or increase it's size

Question

I made a decimal to binary converter but I couldn't complete it. how can i complete it in java

Answer 1

You have a few options for increasing the arrays size:

* Make the array have a larger size, leaving some spaces empty
* Create a new array of the size you need, then add all the elements of the previous array over to the new array
* Use an arrayList
* Use a Linked List

Answer 2

you can declare an array like this?

int [] i = new int [5];

now you can initalize each element

i [0] = 41;

System.out.println (i [0]);

output 41

or you can cast the int to double inside print method

System.out.println (double)i [0]));

output 41.0