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 term event handler, Explain the term Event Handler? An even...

Explain the term Event Handler? An event handler is a command that calls a function while an event happens, like as the user clicking a button.

Java application - gui and backend projects, JNLP/ Java Application - GUI a...

JNLP/ Java Application - GUI and Backend Projects Project Description: I am looking for assist in making changes to a complex java application. System launches from web pa

Program that instantiates a number of actors and writers, Talent agencies l...

Talent agencies like ICM, CAA and Paradigm represent writers, directors and actors (among other talent).  These agencies take in hundreds of millions of dollars a year collecting 1

What is javaserver faces expression language, A easy expression language us...

A easy expression language used by a JavaServer Faces UI component tag attributes to bind the associated component to a bean property or to bind the associated component's value to

Need an engineer for flex reporting tool, Need an engineer who has knowledg...

Need an engineer who has knowledge working on Flex Reporting tool. Who knows how data needs to be taken care of from DB, SharePoint, ERP and then process using logic/intelligence u

Student, short Java application that stores words in an Array or ArrayList....

short Java application that stores words in an Array or ArrayList.

Determine about the runtime security manager, Determine about the runtime S...

Determine about the runtime Security Manager Java also has a runtime Security Manager can check which operations a specific piece of code is allowed to do. Consequently, java c

Determine the java compiler structure, Determine the Java Compiler Structur...

Determine the Java Compiler Structure Source code for every class is in a .java file. Compile every class to produce -.class? file. Sometimes, multiple .class files are pack

Derfine j2ee in detail?, A J2EE component is a self-contained functional so...

A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related files and classes and interacts with other components. The

Illustrate an example to define a student class, Task - Defining a Student ...

Task - Defining a Student class The below illustration will explain how to write a class. We want to write a "Student" class which - should be able to store the below charac

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