Answered: ArrayList hetero=new ArrayList();…

ArrayList hetero=new ArrayList(); hetero.add(3); hetero.add("salut"); hetero.add(6.78); hetero.add(null); hetero.add("salut"); System.out.println(hetero.indexOf("salut")); O-1 0 1

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

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