Introduction

Overview

Two Children

Learning Objectives

• State the importance of well-behaved Java objects

• List and describe the required functionality of a well-behaved Java object

• State the purpose of the hashCode() method

• Describe two algorithms for implementing a suitable hashCode() method

• Demonstrate your ability to implement a suitable hashCode() method

• Describe how Java collections framework classes utilize the hashCode() method

• Describe how Java collections framework classes utilize the equals() method

• State the reasons for overriding the toString() method

• State the purpose of the equals() method

• Describe the contract for implementing the equals() method

• Describe the proper use of the clone() method

• Explain the difference between a deep copy vs. a shallow copy

• Describe the proper use of the finalize() method

• List and describe the differences between the Comparator and Comparable interfaces

• Describe what it means for a class of objects to have a natural ordering

• State the purpose of the Serializable interface