Java 11 doesn’t have a lot of language specific features. So, it was surprising to see 6 new methods getting introduced in Java String Class. Java 11 String Class New Methods Let’s look at these new String class methods one by one. isBlank(): This method returns true if the string is empty or contains only […]
Java String join()
Java String join() function is used to join multiple strings to create a new string with the specified delimiter. Java String join() Java String join() method is added in Java 8 release. There are two variants of join() method, both of them are static methods. public static String join(CharSequence delimiter, CharSequence… elements) public static String […]
Java 11 Features
We haven’t fully immersed ourselves in Java 10 yet, and Java 11 is here. Java 11 is important for more than just a few reasons. Oracle has revamped its support model and come up with a release train that’ll bring rapid updates, about every 6 months. They’ve changed the licensing and support model which means […]
Pyramid Pattern Programs in Java
Pattern programs are used a lot in interviews to understand the logical thinking abilities of the interviewee. Pyramid patterns are very popular and once we get the logic on the way it’s created, writing code to achieve the same is an easy task. Pyramid Pattern Programs in Java Here I am providing some examples to […]
Mule ESB – Getting Started
What is Mule ESB? Mule, the runtime platform and a nimble Java-based enterprise service (ESB) which allows developers to easily build high-performance, secure, multi-protocol interactions between heterogeneous systems and services. It enables easy integration of existing systems, regardless of the different technologies that the applications use. The exchange of data between applications is carried by […]
Why Java Static Constructor is not allowed?
Java Static Constructor is not allowed, but why? Before we dig into the reasons for not allowing static constructor, let’s see what happens if we want to make a constructor static. Java Static Constructor Let’s say we have a class defined as: public class Data { private int id; public static Data() {} } If […]
Static Method in Java
Static Method in Java belongs to the class and not its instances. A static method can access only static variables of class and invoke only static methods of the class. Usually, static methods are utility methods that we want to expose to be used by other classes without the need of creating an instance. For […]
Java Method
Java is an Object Oriented Programming language. Java Methods are defined in the class and they are the backbone of its programming. Java Method Java Method is a collection of statements to process some specific task and return the response to the caller. Methods allow us to write reusable code and dividing our program into […]
EasyMock Private Method Mock using PowerMock
Sometimes we want to test a method that is using a private method. We can create the mock object using EasyMock but EasyMock doesn’t allow us to mock private methods. So we can use PowerMock EasyMock API extension to mock a class private methods. EasyMock Private Method Mock using PowerMock For stubbing private method behavior, […]
java.sql.Date – Java SQL Date
Java SQL Date class is part of java.sql package. java.sql.Date is a sub class of java.util.Date class. Java SQL Date Java SQL Date object can be obtained by wrapping around a millisecond value that allows JDBC to identify this as an SQL DATE value. A milliseconds value represents the number of milliseconds that have passed. […]