The Artima Developer Community
Sponsored Link

Java Buzz Forum
Java Tutorial : Java Object Class(equals method-book)

0 replies on 1 page.

Welcome Guest
  Sign In

Go back to the topic listing  Back to Topic List Click to reply to this topic  Reply to this Topic Click to search messages in this forum  Search Forum Click for a threaded view of the topic  Threaded View   
Previous Topic   Next Topic
Flat View: This topic has 0 replies on 1 page
Ram N

Posts: 2777
Nickname: ramram
Registered: Jul, 2014

Ram N is Java Programmer
Java Tutorial : Java Object Class(equals method-book) Posted: Feb 3, 2016 11:51 AM
Reply to this message Reply

This post originated from an RSS feed registered with Java Buzz by Ram N.
Original Post: Java Tutorial : Java Object Class(equals method-book)
Feed Title: JAVA EE
Feed URL: http://ramj2ee.blogspot.com/feeds/posts/default?alt=rss
Feed Description: This blog has viedo tutorials and Sample codes related to below Technologies. 1.J2EE 2.Java 3.Spring 4.Hibernate 5.Database 6.Oracle 7.Mysql 8.Design Patterns
Latest Java Buzz Posts
Latest Java Buzz Posts by Ram N
Latest Posts From JAVA EE

Advertisement

Click here to watch in Youtube :
https://www.youtube.com/watch?v=xxz_yf92YRo&list=UUhwKlOVR041tngjerWxVccw

Click the below Image to Enlarge
Java Tutorial : Java Object Class(equals method-book) 
Java Tutorial : Java Object Class(equals method-book) 
Book.java
public class Book
{
private String name;
private String isbnNumber;

public Book(String name, String isbnNumber)
{
super();
this.name = name;
this.isbnNumber = isbnNumber;
}

public String getName()
{
return name;
}

public void setName(String name)
{
this.name = name;
}

public String getIsbnNumber()
{
return isbnNumber;
}

public void setIsbnNumber(String isbnNumber)
{
this.isbnNumber = isbnNumber;
}

}
ObjectClassTest.java
public class ObjectClassTest
{

public static void main(String[] args)
{
Book childrenStoryBookObj = new Book("Children Story", "2000");
Book KidStoryBookObj = new Book("Kids Story", "2000");

System.out.println("childrenStoryBookObj.hashCode() = "
+ childrenStoryBookObj.hashCode());

System.out.println("KidStoryBookObj.hashCode() = "
+ KidStoryBookObj.hashCode());

/*
* The equals() method provided in the Object class
* uses the identity operator (==) to determine
* whether two objects are equal.
*
* For objects, The equals() method provided by
* Object tests whether the object references are
* equal—that is, if the objects compared are the
* exact same object.
*/


System.out
.println("childrenStoryBookObj.equals(KidStoryBookObj) = "
+ childrenStoryBookObj
.equals(KidStoryBookObj));

System.out
.println("childrenStoryBookObj.equals(childrenStoryBookObj) = "
+ childrenStoryBookObj
.equals(childrenStoryBookObj));

Integer a = 10;
Integer b = 10;

/*
* For primitive data types,it won't check the
* Object reference.
*/

System.out.println("a.equals(b) = " + a.equals(b));

}

}
Output
childrenStoryBookObj.hashCode() = 1704856573
KidStoryBookObj.hashCode() = 705927765
childrenStoryBookObj.equals(KidStoryBookObj) = false
childrenStoryBookObj.equals(childrenStoryBookObj) = true
a.equals(b) = true
Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/ObjectClassDemo_equals_book_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ObjectClassDemo_equals_book_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/8fa82bcbf36a8ef675302adced6f7a0764627bd4/BasicJava/ObjectClassDemo_equals_book_App/?at=master

See also:
  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
  • Read: Java Tutorial : Java Object Class(equals method-book)

    Topic: Google spotlights Go language with new open source load balancer Previous Topic   Next Topic Topic: Oracle's Java plug-in move no surprise, but is JavaWS the answer?

    Sponsored Links



    Google
      Web Artima.com   

    Copyright © 1996-2019 Artima, Inc. All Rights Reserved. - Privacy Policy - Terms of Use