How To Install Java with Apt on Ubuntu
Install Java on Ubuntu using apt. Learn how to install OpenJDK and Oracle JDK, manage versions, and configure JAVA_HOME.
How to validate XML against XSD in Java
URL: https://www.progressiverobot.com/how-to-validate-xml-against-xsd-in-java/ Java XML Validation API can be used to validate XML against XSD in java program. javax.xml.validation.Validator class is used in this program to validate xml against xsd in java. Validate XML against XSD  Here are the sample XSD and XML files used. […]
Java 12 Features
URL: https://www.progressiverobot.com/java-12-features/ Finally, JDK 12 which is a part of the six-month release cycle, is here. It comes after the last Java LTS version 11. We had discussed at length on [Java 11 features](/community/tutorials/java-11-features) before. Today we'll be discussing Java 12 features and see what it has in store for developers. Java 12 was launched […]
Java Array of ArrayList, ArrayList of Array
URL: https://www.progressiverobot.com/java-array-of-arraylist-of-array/ Today we will learn how to create a Java array of ArrayList. We will also learn how to create an ArrayList of array elements. Java Array of ArrayList  Creating array of [list in java](/community/tutorials/java-list) is not complex. Below is a simple program showing [java […]
Java Copy File – 4 Ways to Copy File in Java
URL: https://www.progressiverobot.com/java-copy-file/ Java copy file is a very common operation. But java.io.File class doesn't have any shortcut method to copy a file from source to destination. Here we will learn about four different ways we can copy file in java. Java Copy File ![java copy file, copy file in java, java file copy, java copy […]
Java get file size
URL: https://www.progressiverobot.com/java-get-file-size/ Today we will look into different ways to get file size in Java. Java get file size There are different classes that we can use for java get file size program. Some of them are; Java get file size using File class Get file size in java using FileChannel class Java get file […]
How To Use add() and addAll() Methods for Java List
Learn how to use Java List add() and addAll() methods with examples. Understand syntax, performance, and best practices for managing collections.
Java read file to String
URL: https://www.progressiverobot.com/java-read-file-to-string/ Sometimes while working with files, we need to read the file to String in Java. Today we will look into various ways to read the file to String in Java. Java read file to String There are many ways to read a file to String in Java. We will explore the following ways […]
Java Stream distinct() Function to Remove Duplicates
URL: https://www.progressiverobot.com/java-stream-distinct-function/ Java Stream distinct() method returns a new stream of distinct elements. It's useful in removing duplicate elements from the collection before processing them. Java Stream distinct() Method The elements are compared using the [equals() method](/community/tutorials/java-equals-hashcode). So it's necessary that the [stream](/community/tutorials/java-8-stream) elements have proper implementation of equals() method. If the stream is ordered, […]
Java Timer TimerTask Example
URL: https://www.progressiverobot.com/java-timer-timertask-example/ Java java.util.Timer is a utility class that can be used to schedule a thread to be executed at certain time in future. Java Timer class can be used to schedule a task to be run one-time or to be run at regular intervals. Java TimerTask java.util.TimerTask is an [abstract class](/community/tutorials/abstract-class-in-java) that implements Runnable […]
