Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
We often compare two strings to the same case and then compare them to see if they are the same. Instead, we can use the StringComparison class’s InvariantCultureIgnoreCase property. String.Equals(‘stringOne’,
The unused namespaces in the class file are greyed out when you are viewing the file in Visual Studio Code editor. This way you can quickly remove unnecessary items using
Modern web applications are predominately on HTTPS and you may want to decrypt that traffic for inspection. One of the best tools that developers use is Fiddler. Fiddler, by default,
int x = Integer.valueOf(str).intValue(); int y = Long.valueOf(Double.valueOf(str).longValue).intValue(); To use the API without allocating unnecessary objects use the following lines of code: int x = Integer.parseInt(str); int y = (int) Double.parseDouble(str);
If you have too many images on a web page, it will make too many requests to the server and take a lot of bandwidth as well. This will all
GC logs are vital artifacts to troubleshoot memory/CPU related problems and optimize applications performance. In Sep 2017, the much-awaited Java 9 was released and GC logging was re-implemented using the
Code snippet: public class NanoTimeInJava{public static void main(String args[]){NanoTimeInJava nanoTimeInJava = new NanoTimeInJava();nanoTimeInJava.proceed();} private void proceed(){//The following nanoTime() method in System class provides the time in nano secondsSystem.out.println(“Time in nano seconds : “+System.nanoTime());}} /* Expected output: [root@mypc]# java NanoTimeInJavaTime in nano seconds : 698344477290095 */
There are cases in which you will find the need to have variables inside a LINQ query to hold an evaluation result. The Let keyword helps in this case. See
This is probably an audit requirement and most of the time it is essential to maintain the creation time. However, passing the current time from an application context may not
You can identify unused Tables in the following way: ; with Unused (TableName , RowCount, DateCreated, DateModified)AS (SELECT unusedTable.name AS TableName,PS.row_count AS RowCount,unusedTable.create_date AS DateCreated,unusedTable.modify_date AS DateModifiedFROM sys.all_objects UnusedTableJOIN sys.dm_db_partition_stats
It’s not a good idea to read an XML file and store it in a String because it wastes memory. XML specifies its encoding in the XML header, so when
Adding a different country’s holidays to your Outlook calendar is easy and can be done in few clicks. Go to Outlook –> Options –> Calendar –> Calendar Options. Click on
Ideally, when you do not know the data type that you want to store in an array, you can create an Object array and later associate it with the data
Imagine, you want to schedule activating a task few moments (3 seconds in this case) from now, the following code snippet will be helpful. import java.util.*;//We only need Timer and
You can identify tables with a huge column count in the following way: DECLARE @limit INT;SET @limit = 30; –MAX 30 Columns;WITH c([object_id], [column count]) AS( SELECT [object_id], COUNT(*) FROM
zero = new Integer(0);return Boolean.valueOf(“true”); Integer and Boolean are immutable; so, it is a bad idea to create objects that represent the same value, those classes have built-in caches for
We can now use the Performance API to compute the execution time for a piece of code in JavaScript. //capture the start time in a variable.var timeStart = performance.now();//run a
Excel Pivot Tables are a great way to summarize statuses and aggregate data. However, with any kind of data that you aggregate you will see blanks at times. There are cases, where you would like to universally replace all blank values in Pivot table with an alternate value. Right-click on the Pivot table. Select the ???Pivot table options???. Under ???Layout and Format – Format??? there is an option that lets you replace empty cells value with your own predefined value. Enter a value there, and the Pivot table would use that in all blank places.
If you want to replay a XHR request, you can do that very easily in chrome. Right-click on the selected request and choose the ???Replay XHR??? option, and the browser will issue that request. You can see the replayed request at the bottom of the all captured requests.
When you refresh a page in the Chrome browser during any troubleshooting, you would have realized that the logs are being cleared for every page reload. To override this, you can check the ???Preserve Log??? box under the ???Network??? tab in Developer tools. It retains all the requests across page reloads, until you clear them manually or close the page.
The new keyword definitely consumes more time when compared to direct initializing the value to a String object. The following illustrates the time consumed by both the mechanisms. These values
There are a lot of layout settings that help you define the page layout for printing — background, margins, etc. The Print area option allows you to select a certain area to
There are a lot of layout settings that help you define the page layout for printing???background, margins, etc. The Print area option allows you to select a certain area to
You can use the following snippet to quickly find out a column’s name. COL_NAME accepts two parameters: TableID and the ordinal position. SELECT COL_NAME(object_id(‘waybill’),2) AS col_name ? Visit the DevX
You can use the following snippet to quickly find out a column’s name. COL_NAME accepts two parameters: TableID and the ordinal position. SELECT COL_NAME(object_id(‘waybill’),2) AS col_name
Writer w = new OutputStreamWriter(os, “UTF-8”);while (…){ w.write(“something”);} OutputStreamWriter uses memory for each call to its write() methods. This is why it is better to avoid this; if you do
Microsoft applications, such as Word, Excel, PowerPoint, etc., allow you to add frequently used toolbar items that are buried in various menu groups to a section called the Quick Access
Devart, a recognized vendor of professional database tools for developers and DBAs, has released a new version of SecureBridge. An update of SecureBridge components delivers such new features as: * Support for the HTTP and HTTPS protocols is added * The TScHttpWebRequest component to support the request/response model for accessing data using HTTP/HTTPS protocol is added * Performance of downloading and uploading a file using TScSFTPClient is improved * The TScSFTPClient.PipelineLength property to indicate the number of pending requests is added *The TScSSHClientOptions.SocketReceiveBufferSize and SocketSendBufferSize properties to increase socket performance are added SecureBridge protects any TCP traffic using SSH or SSL secure transport layer protocols that provide authentication for both client and server, strong data encryption, and data integrity verification. SecureBridge components can be used in conjunction with data access components to prevent data interception or modification in an untrusted network. Learn more about SecureBridge at https://www.devart.com/sbridge/ About DevartDevart is one of the leading developers of database tools and administration software, ALM solutions, data providers for various database servers, data integration and backup solutions. The company also implements Web and Mobile development projects.Learn more about Devart at https://www.devart.com.
The String class facilitates finding the unicode of characters in a String using the codePointAt method. Listing 1. Finding Unicode Characters public class StringCodePoint{ public static void main(String args[]) {
Java provides a very easy mechanism to read jar files. It is the same process used for reading a zip file. The file myFiles.jar contains one or more files (as
