Java

URL: https://www.progressiverobot.com/interface-in-java/ Interface in java is one of the core concept. Java Interface is core part of java programming language and used a lot not only in JDK but also [java design patterns](/community/tutorials/java/design-patterns). Most of the frameworks use java interface heavily. Interface in Java  Interface in java provide a […]

URL: https://www.progressiverobot.com/java-access-modifiers/ Java access modifiers are used to provide access control in java. Java provides access control through three keywords – private, protected and public. We are not required to use these access modifiers always, so we have another one namely "default access", "package-private" or "no modifier". Java Access Modifiers ![java access modifiers, protected, private, […]

URL: https://www.progressiverobot.com/java-file-separator-separatorchar-pathseparator-pathseparatorchar/ java.io.File class contains four static separator variables. Here we will learn about them and when to use it. File.separator: Platform dependent default name-separator character as String. For windows, it's '\' and for unix it's '/'. File.separatorChar: Same as separator but it's char. File.pathSeparator: Platform dependent variable for path-separator. For example PATH or CLASSPATH […]

A Guide to Java memory management. Dive deep into the JVM Memory Model, Heap, Stack, Garbage Collection, and best practices.

URL: https://www.progressiverobot.com/java-qr-code-generator-zxing-example/ Today we will look into the Java QR code generator program. If you are tech and gadget savvy, then you must be aware of the QR code. You will find it everywhere these days – in blogs, websites, and even in some public places. This is very popular in mobile apps, where you […]

URL: https://www.progressiverobot.com/java-thread-dump-visualvm-jstack-kill-3-jcmd/ Java Thread dump is list of all the threads active in the JVM. Java Thread Dump Java thread dump is very helpful in analyzing bottlenecks in the application and [deadlock](/community/tutorials/deadlock-in-java-example "Java Deadlock") situations. Here we will learn multiple ways through which we can generate thread dump for a java program. These instructions are […]

URL: https://www.progressiverobot.com/javamail-example-send-mail-in-java-smtp/ Today we will look into JavaMail Example to send email in java programs. Sending emails is one of the common tasks in real life applications and that's why Java provides robust JavaMail API that we can use to send emails using SMTP server. JavaMail API supports both TLS and SSL authentication for sending […]