Java Array and ArrayList

Firstly, the asList method is the right method:

Integer[] myArray = new Integer[3];
List<Integer> myArrayList = Arrays.asList(myArray);
System.out.println(myArrayList.size()); // prints 3, as expected

The problem may be that you are calling the varargs asList method in such a way that java is interpreting your parameter as the first varargs value (and not as an array of values).

Object myArray = new Integer[3];
List<Object> myArrayList = Arrays.asList(myArray);
System.out.println(myArrayList.size()); // prints 1 - java invoked it as an array of Integer[]

To fix this problem, try casting your parameter as Object[] to force the varargs invocation, eg:

Object myArray = new Integer[3];
List<Object> myArrayList = Arrays.asList((Object[]) myArray); // Note cast here
System.out.println(myArrayList.size()); // prints 3, as desired

Would this work?

Object[] myArray = new Object[4]; //change this to whatever object you have
ArrayList<Object> list = new ArrayList<Object>();
for (Object thing : myArray) list.add(thing);

Try providing the generic type in the method call. The following gives me a list of 2 String elements.

    String[] strings = new String[]{"1", "2"};
    List<String> list = Arrays.<String>asList(strings);
    System.out.println(list.size());

There are different ways by which you can achieve it.3 example of converting array to arraylist and arraylist to array in java might help.