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In this article, we will compare two Strings in Java using the compareTo() method, equals() method, or == operator. Each approach serves a specific purpose in comparing strings, whether it's lexicographical comparison, checking for content equality, or comparing object references. Using the compareTo() methodThe compareTo() method compares two strings. The comparison is based on the Unicode value of each character in the strings. The character sequence represented by this String object is compared lexicographically to the character sequence represented by the argument string. The result is a negative integer ... Read More
In this article, we will learn how to replace all occurrences of a given string with a new one using the replaceAll() method in Java. This method is particularly useful when we want to modify specific parts of a string. replaceAll() method The replaceAll() method in Java is used to find substrings within a string that match a specified regular expression and replace them with a given string. This method performs a search for all occurrences that match the provided regex pattern and replaces them with the new string.Syntax public String replaceAll(String regex, String replace_str) Steps to replace all occurrences ... Read More
In this article, we will learn how to retrieve the list of time and date functions in the database using the getTimeDateFunctions() method of the DatabaseMetaData class in Java. getTimeDateFunctions() The getTimeDateFunctions() method retrieves the list of time and date functions supported by the current database. The names returned by this method are the Open CLI time and date function names. Steps to Retrieve Time and Date Functions in Database To get the list of the time and date functions supported by the underlying database − Step 1: Register the Driver: Make sure your database is ... Read More
In this article, we will learn the usage of the setTime() method in Java with a complete example. Handling time-related data is an essential aspect of many Java applications, especially when interacting with databases. The java.sql.Time class, designed to handle SQL TIME values. What is setTime() method The setTime() method of the java.util.Time class accepts a variable of long type, representing the number of milliseconds from the epoch time (January 1, 1970, 00:00:00.000 GMT) to the required time, and sets the specified time value to the current Time object. //Setting time time.setTime(time_value_in_long); Use Cases of setTime() Following are the use ... Read More
Extracting floating numbers from text/string can be done using Python’s regular expressions which provides a flexible and effective way to parse numerical data embedded in strings. Regex can be customized to extract floating-point numbers, whole numbers, or complex patterns based on your specific needs. The regular expression used in the example is: import re r"[-+]?\d*\.\d+|\d+" Let’s break down each parameter: '[-+]?': This allows for an optional sign (`+` or `-`) at the start of the number. '\d*\.\d+': matches zero or more digits before the decimal point. ... Read More
The re.finditer() method in Python's 're' module finds all occurrences of a specified pattern in a string. It returns an iterator containing match objects for each occurrence. This method is especially useful when you need to determine the position of each match within the input string. Following is the syntax for re.finditer() method. re.finditer(pattern, string, flags=0) How to Use 're.finditer()' Method Following are the steps involved in using re.finditer() method. Import the re module: You need to import the regular expression module before using it. ... Read More
Many industries are switching from traditional to digital marketing as a result of technological advancements. Every business, no matter how big or little, wants to be online, which is why several companies have developed content management and website building platforms that make it simple to develop web apps. Weebly and Magento are two such platforms that offer various services for creating websites and online applications for either personal or business use. What is Weebly? Weebly is a website development firm that assists in creating e-commerce websites and interactive web applications. This platform was developed by Chris Fannin, Dan Veltri, and ... Read More
The Tag Summary in HTML To display a visible heading for the tag use the tag. Click the heading to hide or view the details. The first child element of the tag is the element. This tag specifies additional details that the user can open and close on demand. The tag is often used to create an interactive element that the user can switch open and close. Syntax Following is the syntax of the summary element − text … The summary tag supports global and event ... Read More
Adding Ordered Unordered Lists To define a list item in HTML, use the tag. It can be used inside ordered lists (), unordered lists () and menu lists (). In an ordered list , the list items are displayed with numbers or letters. In an unordered list , and a menu list , the list items are displayed with bullet points. Syntax Following is the syntax list item in HTML − ……… The list tag also supports the following additional attributes − ... Read More
Recursive Factorial Calculation A strong number is a number, where the sum of the factorial of its digits equals the number itself. In C programming, a factorial is the product of all positive integers less than or equal to a given number. To calculate the factorial of a number, we use a recursive function with the argument N. This function will repeatedly call itself with a decremented value of N, multiplying the results until it reaches 1. 123!= 1!+2!+3! =1+2+6 =9 In this case, 123 is not a strong number because the sum of the factorial of its digits ... Read More