Javascript String Is Equal To Method

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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:

  1. We declare a variable called onFileBookingReference which stores the booking reference associated with the name of a customer.
  2. We declare a variable named customerGivenBookingReference which stores the booking reference given by the customer to the receptionist.
  3. We use the equal () to check if onFileBookingReference is equal to customerGivenBookingReference and set the result of the method to the areEqual variable.
  4. Un The if instruction checks whether areEqual is equal to true.
    1. If areEqual is true, the message This reservation is confirmed is displayed. it is printed on the console.
    2. 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.

Conclusion

The String equals () method is used to check if two strings are exactly equal. The equalsIgnoreCase () method is used to check if two strings are equal, regardless of their case.

This tutorial demonstrated how to use the equals () and equalsIgnoreCase () string methods in Java , referring to two examples. You are now ready to start comparing strings in Java using equals () and equalsIgnoreCase () like a pro!

👻 Read also: what is the best laptop for engineering students?

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.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Marie Danburry

Milan | 2023-03-22

Thanks for explaining! I was stuck with Javascript String Is Equal To Method for some hours, finally got it done 🤗. Will use it in my bachelor thesis

Anna OConnell

Singapore | 2023-03-22

exp is always a bit confusing 😭 Javascript String Is Equal To Method is not the only problem I encountered. Will use it in my bachelor thesis

Angelo Richtgofen

Warsaw | 2023-03-22

Thanks for explaining! I was stuck with Javascript String Is Equal To Method for some hours, finally got it done 🤗. Will use it in my bachelor thesis

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