We never liked Captchas because the burden was always on end user to understand the letters and prove that he is a human and not a software bot. But when we recently saw new Google reCAPTCHA on a website, we instantly liked it. Because all we need is to check a box and it will […]
URL: https://www.progressiverobot.com/servlet-interview-questions-and-answers/ Servlets is a very important topic of Java EE and all of the web applications frameworks such as Spring and Struts is built on top of it. This makes servlet interview questions a hot topic in interviews. Here I am providing a list of 50 servlet interview questions with answers to help you […]
URL: https://www.progressiverobot.com/jersey-java-tutorial/ Welcome to Java Jersey Tutorial. Recently I started working on a Restful web service project using the JAX-RS Jersey framework. What is Java Jersey Framework? Java Jersey project tracks the JAX-RS API, which is used to create Restful web services in Java.  1. Who should use this […]
URL: https://www.progressiverobot.com/jstl-tutorial-jstl-tags-example/ JSTL stands for JSP Standard Tag Library. JSTL is the standard tag library that provides tags to control the JSP page behavior. JSTL tags can be used for iteration and control statements, internationalization, SQL etc. We will look into JSTL Tags in detail in this JSTL tutorial. Earlier we saw how we can […]
URL: https://www.progressiverobot.com/java-web-services-tutorial/ Welcome to the Java Web Services Tutorial. Here we will learn about web services, useful concepts in web services and then different types of API we have in Java to create web services. What is a Web Service In simple words, services that can be accessed over network are called web services. So […]
URL: https://www.progressiverobot.com/servlet-jsp-tutorial/ Servlet JSP technologies are backbone of Java EE programming. Recently I have written a lot about Servlet and JSP programming and this is a summary post for Servlet JSP Tutorials where I am providing all the article links in the order to read them. Servlet JSP Tutorial ![Servlet JSP Tutorial, JSP Tutorial, JSP […]
URL: https://www.progressiverobot.com/restful-web-services-tutorial-java/ Welcome to Restful Web Services Tutorial in Java. REST is the acronym for REpresentational State Transfer. REST is an architectural style for developing applications that can be accessed over the network. REST architectural style was brought in light by Roy Fielding in his doctoral thesis in 2000. Restful Web Services Restful Web Services […]
URL: https://www.progressiverobot.com/jsf-authentication-login-logout-database-example/ Authentication mechanism allows users to have secure access to the application by validating the username and password. We will be using JSF view for login, DAO object ,HttpSession for session management, JSF managed bean and mysql database. Lets now look in detail as how to create a JSF login logout authentication mechanism in […]
URL: https://www.progressiverobot.com/tomcat-datasource-jndi-example-java/ Welcome to Tomcat DataSource JNDI Example Tutorial. We looked at the [JDBC DataSource](/community/tutorials/java-datasource-jdbc-datasource-example "JDBC DataSource Example – Oracle, MySQL and Apache DBCP Tutorial") in the last tutorial and learned how to use that in standalone java application. Tomcat DataSource JNDI  Actual benefit of DataSource comes […]
URL: https://www.progressiverobot.com/jsp-exception-handling-jsp-error-page/ Exception handling in JSP is done by JSP exception pages. Exception Handling in JSP Sometime back I wrote a post about [Servlet Exception Handling](/community/tutorials/servlet-exception-and-error-handling-example-tutorial "Servlet Exception and Error Handling Example Tutorial") and why do we need it. Same explanation is also applicable for JSP pages also and that's why Java EE provides a […]
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