Java 9 is scheduled to be released in July 2017. The Feature Extension Complete milestone was achieved in late December,. We will have a look at the new features in Java 9. Java 9 Features Module System (Jigsaw Project) JShell Collection Factory methods Private Methods in Interfaces Reactive Streams Multi Resolution Images API Process API … [Read more…]
In this article we are going to discuss the most important features of Java 8. I would be discussing these features with examples. Functional Interfaces Functional interfaces are interfaces with exactly one method. They can have an annotation with @FunctionalInterface. A very good example of Function Interface is that of the Comparable. It has exactly … [Read more…]
Here is a list interview questions that may be asked in interviews. Java Generics as a feature is one of the most controversial features added to Java Language. As a programmer, it is very important that the basic concepts of Generics should be very clear. I have prepared a list of basic interview questions that … [Read more…]
Restful API Questions What is REST? REST stands for Representational State Transfer. It is an architectural style of client-server application What are the constraints for REST architectural style? REST architectural style describes six contraints: Uniform Interface Stateless Cacheable Client-Server Layered System Code on Demand – Optional What is Uniform Interface? Uniform interface constraint defines the interface between … [Read more…]
[org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 36; External DTD: Failed to read external DTD ‘Custom.dtd’, because ‘file’ access is not allowed due to restriction set by the accessExternalDTD property.] Stacktrace Solution Add the following property to your vm arguments.
In this article, I will be listing the frequently asked interview questions on hibernate in java application. These questions are collected from real interviews. All these questions check whether a candidate has basic knowledge of the hibernate. 1) What’s ORM? Object-Relational Mapping (ORM) is a technique that lets you query and manipulate data from a … [Read more…]
In this tutorial we will write different solutions for palindrome string in java. In is one of the questions asked in interviews. What is a palindrome? A palindrome is a word, phrase, number or other sequence of units that can be read the same way in either direction. Here is an example of palindrome string. … [Read more…]
We will convert binary number to decimal using following two methods: Without using Integer.parseInt() Using Integer.parseInt() Write a program to convert binary to decimal without using Integer.parseInt() Output Write a program to convert binary to decimal using Integer.parseInt() Output Integer.parseInt() We used Integer.parseInt() in the second example. The Javadocs about this method Parses the string argument as a … [Read more…]
It is very important to know the concepts of Object Oriented Programming(OOP) before you go for an interview for any of the OOPs languages like Java, C++ or Python. Here I would be listing the mostly asked OOPs interview questions. And would also explain various OOPs concepts. 1. What is Object Oriented Programming? Object Oriented … [Read more…]
Recently we switched from Java 7 to Java 8 and we were using spring 3.1.1. And once we started using the java 8 features in spring beans, we started to encounter the following stacktrace. Solution And the solution to this issue is to upgrade to spring 4.x or don’t use java 8 features in spring … [Read more…]