Better way to find index of item in ArrayList?

Question

For an Android app, I have the following functionality

private ArrayList _categories; // eg [\"horses\",\"camels\"[,etc]]

private int getCateg         


        

Answer 1

The best way to find the position of item in the list is by using Collections interface,

Eg,

List sampleList = Arrays.asList(10,45,56,35,6,7);
Collections.binarySearch(sampleList, 56);

Output : 2