Javascript String Is Equal To Method
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Michael Zippo
04.11.2021
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Strings are a data type used to store text data in Java. When working with strings, you may come across a scenario where you want to compare two strings with each other.
This is where the Java string equals ()
and equalsIgnoreCase ()
comes into play. The equals ()
is used to check if two strings are equal and equalsIgnoreCase ()
is used to compare if two strings are equal ignoring their case.
This tutorial will explain, with examples, how to use the string equals ()
and equalsIgnoreCase ()
in Java. By the end of this article, you will know how to compare strings using these methods in Java.
Java Strings
Strings are used to store text and can include letters, numbers, symbols, and spaces. For example, a chain might include the name of a customer at a tailor or the address of a supplier for the tailor.
In Java, strings are declared as a sequence of characters in quotes. Here is an example of a Java string:
In this example, we’ve declared a variable called favoriteCoffeeShop
and set it to Central Perk
.
String Java objects are immutable, which means that once you’ve created a string, you need to use the equals ()
method to compare it to another channel. Now that we know the basics of strings, we can continue discussing the equals ()
and equalsIgnoreCase ()
methods.
Java String equals
The Java string equals ()
method is used to compare objects and check if the content of two strings is equal .
equals ()
takes one parameter: the string you want to compare to another channel. Here is the syntax of the equals ()
string method:
Let’s break this down:
- stringName is the name of the original string with which want to compare string2Name < / li>
- equals () is the method used to compare stringName with string2Name.
- string2Name is the string you want to compare with stringName.
The equals ()
method returns a Boolean value depending on whether the strings are equal, so if both strings are equal then true, otherwise false is returned.
The string equals ()
method is case sensitive, so if two strings contain the same characters but use multiple case characters, the method equals ( )
will return false.
Example of equal Java string
Suppose you are managing a hotel and writing a program to simplify our registration phase. a client registers, he must provide his name and reservation code. We will compare the reservation code provided by the client with the one registered with his name in the file, to verify the identity of the client.
We can We would use this code to compare the reservation reference in the archive with the reservation reference provided by the client:
Our code returns:
This reservation is confirmed.
Let’s analyze our code:
- We declare a variable called
onFileBookingReference
which stores the booking reference associated with the name of a customer. - We declare a variable named
customerGivenBookingReference
which stores the booking reference given by the customer to the receptionist. - We use the
equal ()
to check if onFileBookingReference
is equal to customerGivenBookingReference
and set the result of the method to the areEqual variable. - Un The
if
instruction checks whether areEqual
is equal to true. - If areEqual is true, the message
This reservation is confirmed
is displayed. it is printed on the console. - If areEqual is false, the message
The reservation reference provided does not match the one in archive
. is printed on the console.
In this example, the customer provided the correct reservation reference, so our program confirmed their reservation.
Java string equalsIgnoreCase
The string The equalsIgnoreCase () method
is used to compare two strings, ignoring their case. equalsIgnoreCase ()
uses the same syntax as the equals ()
method which is next:
Now let’s take an example to illustrate this method in action.
Suppose we want to write a program that checks if a customer’s name matches the one associated with the referral reservation provided. This check should be case insensitive for s ’’ ensure that a capitalization error does not result in the loss of a reservation by the registrar.
We could use the following code to compare a customer’s name with the one connected to the booking reference:
When we run our code, the following response is returned:
This reservation is confirmed.
The customer name stored in the archive is Gregory Lamont
, but the customer name entered by the employee was Gregory Lamont
. If we used the equals ()
method, these strings would not be considered the same because their cases are different.
However, in this example we have used equalsIgnoreCase ()
, which ignores cases in which characters in the string are written.
We hope this article has helped you to resolve the problem. Apart from Javascript String Is Equal To Method, check other code Python module-related topics.