![]() ![]() Here is an example: String str = "Java is a server-side programming language." The contains() method searches the substring across the original string and returns true if and only if this string contains the specified sequence of character values, and false otherwise. This method returns a boolean value based on whether the substring exists in the this string or not. The first and most popular method used in Java for checking if a string contains another string is contains() from the String class. Let us start with the first commonly used method - contains(). In this article, you'll learn about six different ways of checking if a string contains a substring in Java. You can use contains(), indexOf(), lastIndexOf(), startsWith(), and endsWith() methods to check if one string contains, starts or ends with another string in Java or not. Java provides multiple ways to accomplish this task. Our try-catch block catches this exception and prints a helpful message, much like a friendly barista letting you know they've run out of your favorite roast.One of the most common tasks in Java or any other programming language is to check whether a string contains another string or not. In this example, trying to parse "Java" as an integer will throw a NumberFormatException. For these situations, we use a try-catch block. You might run out of coffee beans, or you might try to parse a string that doesn't contain a number. ![]() In Java, as in coffee making, things don't always go as planned. It's like measuring out the water for your coffee-you need the right amount for the perfect brew. Here, we're converting the string "2023" into an integer. Int number = Integer.parseInt(numberString) Java offers Integer.parseInt() and Double.parseDouble() for these instances. Sometimes, we need to parse a string into a number. ![]() Just as there are different types of coffee-espresso, latte, cappuccino-there are different types of data. Number Parsing: Integer.parseInt() and Double.parseDouble() It's like pouring that first cup of coffee from the pot-simple, satisfying, and essential. Here, substring(0, 4) gives us the first four characters of the string, which is "Java". String firstPart = sentence.substring(0, 4) String sentence = "Java: A Programmer's Elixir" Sometimes, you want a specific part of the string, much like how you might crave that first sip of coffee in the morning. The space character (" ") is our delimiter, the equivalent of the line where the barista cuts your bagel. In this example, we're using the split() method to divide a sentence into individual words. String sentence = "Java is to programming what coffee is to mornings." In Java, we have a built-in method called split(), which is as handy as a coffee scoop when you need to portion out your beans-or in this case, your strings. In the realm of Java, parsing a string means dissecting a sequence of characters into smaller parts based on certain criteria. It's about breaking down a complex whole into its individual components. Parsing is like the art of coffee tasting. For more information, read our affiliate disclosure. ![]() If you click an affiliate link and subsequently make a purchase, we will earn a small commission at no additional cost to you (you pay nothing extra). So, put on your barista apron, and let's get brewing-err, coding! Important disclosure: we're proud affiliates of some tools mentioned in this guide. Today, we're going to dive into the world of parsing strings in Java, a task as essential as grinding beans for your morning brew. Java, the programming language that's as invigorating as a cup of its namesake beverage. ![]()
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