Which method is used to compare two strings?
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Privacy Policy Terms of Use Contact Us Copyright 2022 InterviewBit Technologies Pvt. Ltd. All Rights Reserved. Get a Free personalized Career Roadmap fromThere are three ways to compare strings in Java. The Java String comparison is a crucial part of working with strings in Java. For instance, if you’re building an app for a coffee shop that checks who ordered which drink, you may want to compare the name of the customer with the one you have on-file. Find Your Bootcamp Match
Select your interest By continuing you agree to our Terms of Service and Privacy Policy, and you consent to receive offers and opportunities from Career Karma by telephone, text message, and email. This tutorial will discuss, with reference and examples, how to compare strings in Java. We will discuss the three main options
used to compare strings, and explore the limitations of the By the end of reading this tutorial, you’ll be an expert at comparing strings in Java. Java StringsStrings are used for storing text-based data in programming. Strings in Java are defined as a sequence of characters surrounded by double quotation marks. Here’s an example of a string in Java: In this example, we declare a string called But what if we wanted to compare this string with another string? There are three main methods which can be used to compare strings in Java. These are:
Compare Strings Using ==The Suppose we are operating a coffee shop and we want to compare whether a customer’s name matches the one we have associated with a particular order. We could compare these names using the following code: public class CompareNames { public static void main(String[] args) { String orderName = "James"; String customerName = "James"; if (orderName == customerName) { System.out.println("The customer's name matches the order name."); } else { System.out.println("The customer's name does not match the order name."); } } } Our code returns: The customer's name matches the order name. Let’s break down our code. First, we declare a class called We then use an if statement and the equality operator to compare the value of if (orderName == customerName) If the values stored within Compare String Objects Using ==In the above
example, we declared two strings and used the Here’s what happens if we try to compare two string objects using the public class CompareNames { public static void main(String[] args) { String orderName = new String("James"); String customerName = new String("James"); if (orderName == customerName) { System.out.println("The customer's name matches the order name."); } else { System.out.println("The customer's name does not match the order name."); } } } Our code returns: The customer's name does not match the order name. Even though we assign the string value In our code, we have declared two string objects, each of which have different object references. So, when we try to compare them using Compare Strings Using equals()The Java string Let’s return to the coffee shop example. Suppose we want to compare the name we have associated with a coffee order and the name of a customer. We could do so using this code: public class CompareNames { public static void main(String[] ags) { String orderName = "James"; String customerName = "James"; bool areEqual = orderName.equals(customerName); if (areEqual) { System.out.println("The customer's name matches the order name."); } else { System.out.println("The customer's name does not match the order name."); } } } Our code returns: The customer's name matches the order name. In this example we use the We then assign the value of the You can use the If you’re interested in learning more about the string Compare Strings Using compareTo()The Java string The "Career Karma entered my life when I needed it most and quickly helped me match with a bootcamp. Two months after graduating, I found my dream job that aligned with my values and goals in life!" Venus, Software Engineer at Rockbot Suppose we wanted to compare the names of our coffee shop customer and the name we have associated with a drink lexicographically. We could do so using this code: public class CompareNames { public static void main(String[] ags) { String orderName = "James"; String customerName = "Bill"; int difference = orderName.compareTo(customerName); System.out.println("Difference: " + difference); } } Our code returns: In this example, our code uses Because In addition, the ConclusionComparing the values stored in two strings is a common operation in Java. This tutorial discussed how to compare two strings using the equality operator ( You now have the skills you need to start comparing strings in Java like a professional coder! Which method is used to compare two strings objects for their equality?The String. Equals method can easily determine if two strings are the same. This case-sensitive method returns a true or false Boolean value.
Can I use == to compare two strings?You should not use == (equality operator) to compare these strings because they compare the reference of the string, i.e. whether they are the same object or not. On the other hand, equals() method compares whether the value of the strings is equal, and not the object itself.
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