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

Explain the java.net package, Explain The java.net package Each package...

Explain The java.net package Each package describes a number of classes, interfaces, exceptions, and errors. For instance, the java.net package contains these, classes, interfa

Require assistance in java / grails support, require assistance in Java / G...

require assistance in Java / Grails support We have a project which requires continuous maintenance / support and occasional feature development. Its running on Java 1.7 / Grail

Is jsp technology extensible?, YES. JSP technology is extensible by the dev...

YES. JSP technology is extensible by the development of custom actions, or tags, which are encapsulated in tag libraries. #question..

I need basic mobile app, Project Description: Android app for particular...

Project Description: Android app for particular needs children Provide the fonts, layouts and images of the app. Functions: home screen: main page that links to 'login'

What is a relational database, What is a Relational Database? Give the name...

What is a Relational Database? Give the names of any three RDBMS software? Database consist of two or more then two tables are called Relational database. Oracle dabatbase S

Use the constructor, Can we use the constructor, instead of init(), to init...

Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho

Javascript to calculate the cost of each book, Write JavaScript code that i...

Write JavaScript code that is executed during form submission to calculate the cost of each book (based on quantity specified) and the overall total cost. The results should be dis

Read data from usb logs in windows, I want somebody to help me to create a ...

I want somebody to help me to create a program in java that helps me to read data from usb logs in windows Project Description: I want a java program that helps me to detect

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