What is the difference between equals() and == ? == looks to see if they are identical objects whereas equals() matches the content of the objects. equals() looks to see if they are identical objects whereas == matches the content of the objects. equals() and | == are used to match the content of objects, so no difference. equals() is used to match string objects whereas == is used to match all objects. 0 000
What is the difference between equals() and == ? == looks to see if they are identical objects whereas equals() matches the content of the objects. equals() looks to see if they are identical objects whereas == matches the content of the objects. equals() and | == are used to match the content of objects, so no difference. equals() is used to match string objects whereas == is used to match all objects. 0 000
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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Transcribed Image Text:What is the difference between equals() and
== ?
==
looks to see if they are identical objects whereas equals() matches the content of the objects.
equals() looks to see if they are identical objects whereas == matches the content of the objects.
equals() and | == are used to match the content of objects, so no difference.
equals() is used to match string objects whereas == is used to match all objects.
O O O O

Transcribed Image Text:Which of the following is wrong: If a class inherits from some other class, it should ...
Over-ride or add the minimum to accomplish the derived class purpose
Over-ride all the methods of its parent class
Make use of the parent classes' capabilities
Make sure the result IS-A-KIND-OF its base class
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