Explain testing objects for equality in java, JAVA Programming

Assignment Help:

Explain Testing Objects for Equality in java?

<, >, <= and >= can only be used with numbers and characters. They cannot be used with Strings, booleans, arrays or other compound types since there's no well-defined notion of order for these objects. Is true greater than false? Is "My only regret is that I have but one life to give for my country" greater than "I have a dream"?

Equality is a little easier to test however. true is equal to true and true is not equal to false. Similarly "My only regret is that I have but one life to give for my country" is not equal to "I have a dream." However you might be surprised if you ran this program:
class JackAndJill {

public static void main(String args[]) {

String s1 = new String("Jack went up the hill.");
String s2 = new String("Jack went up the hill.");

if ( s1 == s2 ) {
System.out.println("The strings are the same.");
}

else if ( s1 != s2 ) {
System.out.println("The strings are not the same.");
}
}
}
The result is
The strings are not the same.


Related Discussions:- Explain testing objects for equality in java

What are the steps of working of tcp and ip protocols, What are the steps o...

What are the steps of working of TCP and IP protocols within internet transmission? TCP divide messages in several packets (capsulation) and sent these messages over the internet

Illustrate object-to-relational mapping?, O/R mapping is well suited for re...

O/R mapping is well suited for read, change, write centric applications and not suited for write centric applications where data is seldom read. Although this was usually true of m

Complete the implementation of the class, The class TurtleQTwo extends Turt...

The class TurtleQTwo extends Turtle by adding one new method, plus, which is specified below. (All other features of TurtleQTwo are the same as for Turtle.) method plus(n in

Write a java program to take data from excel files, Java program will be ta...

Java program will be take data from excel files (left diagram), and uses can be able to enter the input(middle diagram) in website when run the input the result appear in Pie 2D or

I want hall rental website, I want Hall Rental Website Project Descripti...

I want Hall Rental Website Project Description: I want to prepare website for my party venue where i will post the photos and detail of place along with availability calendar

Object oriented programming language, what are the steps of object oriented...

what are the steps of object oriented programming language?

Explain about core java, Java is increasingly used for middleware applicati...

Java is increasingly used for middleware applications to communicate among Server and clients. Java has features like multithreading, portability and networking capabilities. Chang

Explain about the security aspect of java, Java has some bugs in its applet...

Java has some bugs in its applets. Java team stated that they have zero tolerance over security features and subsequent editions of Java are managing Bug free environment. Some of

Program to built canvas printing calculator, Printing Calculator Canv...

Printing Calculator Canvas Printing Calculator In this assignment we will continue to work on our canvas printing web service. Specifically we will make use of Javascrip

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd