How to remove all elements from the ArrayList in Java?

Posted by Jessica Taylor | Updated on | Java


Want to remove all elements from the ArrayList in Java? The clear() method removes all the elements of a single ArrayList . It’s a fast operation, as it just sets the array elements to null …

How to match non-word boundaries using Java RegEx?

Posted by Ramesh Singh | Updated on | Java


If you want to match non-word boundaries using Java RegEx? You match a specific word in a string. e.g. We will match “java” in “java is object oriented language”. But it should not match “javap” …

How to match the beginning of the input using Java RegEx?

Posted by Ramesh Singh | Updated on | Java


Want to match the beginning of the input using Java RegEx? You can match the beginning of the input using the meta character “\\A” using Java programming language. Program Output

How to match end of the input using Java RegEx?

Posted by Rohit Kumar | Updated on | Java


If you want to match end of the input using Java RegEx? You can make your pattern matches more precise by specifying such information with boundary matchers.

How can we implement a JSON array using Streaming API in Java?

Posted by Jessica Taylor | Updated on | Java


If you searching for how can we implement a JSON array using Streaming API in Java? Use the below Java program to implement a JSON array using Streaming API using Java programming language.

Scanning Java annotations at runtime

Posted by Editorial Staff | Updated on | Java


Scanning Java annotations at runtime A component provider that scans the classpath from a base package. It then applies exclude and include filters to the resulting classes to find candidates.

How to timeout a thread in Java?

Posted by Rohit Kumar | Updated on | Java


Want to timeout a thread in Java? Indeed rather use ExecutorService instead of Timer, here’s an SSCCE:

What are static factory methods?

Posted by Jessica Taylor | Updated on | Java


In this answer, I have shared what are static factory methods? We avoid providing direct access to database connections because they are resource intensive. So we use a static factory method getDbConnection that creates a …

How do you specify the Java compiler version in a pom.xml file?

Posted by Editorial Staff | Updated on | Java


In this answer, We have shared how do you specify the Java compiler version in a pom.xml file? For example, if you want to use the Java 8 language features (-source 1.8) and also want …

How to remove line breaks from a file in Java?

Posted by Pinki | Updated on | Java


Want to remove line breaks from a file in Java? You need to set text to the results of text.replace(): This is necessary because Strings are immutable — calling replace doesn’t change the original String, …

How to get the filename without the extension in Java?

Posted by Lucy Barret | Updated on | Java


Want to get the filename without the extension in Java? If you, like me, would rather use some library code where they probably have thought of all special cases, such as what happens if you …

Recommended method for escaping HTML in Java

Posted by Editorial Staff | Updated on | Java


In this example, we have shared the recommended method for escaping HTML in Java.

What is the best way to validate an XML file against an XSD file?

Posted by Rohit Kumar | Updated on | Java


What is the best way to validate an XML file against an XSD file? The Java runtime library supports validation. Last time I checked this was the Apache Xerces parser under the covers. You should …

How to convert a String to CharSequence in Java?

Posted by Jessica Taylor | Updated on | Java


If you want to convert a String to CharSequence? Since String IS-A CharSequence, you can pass a String wherever you need a CharSequence, or assign a String to a CharSequence: If you want to convert …

What is Java Servlet?

Posted by Editorial Staff | Updated on | Java


What is Java Servlet? A servlet is simply a class which responds to a particular type of network request – most commonly an HTTP request. Basically servlets are usually used to implement web applications – …