Gateway for Preparing Interviews
How to search second maximum(second highest) salary value(integer)from table employee (field salary)in the manner so that mysql gets less load? By below query we will get second maximum(second highest) salary value(integer)from table employee (field salary)in the manner so that mysql gets less load? SELECT DISTINCT(salary) FROM employee order by salary desc limit 1 , 1 … Read more
How do you think quantum computing will affect machine learning? With the recent announcement of more breakthroughs in quantum computing, the question of how this new format and way of thinking through hardware serves as a useful proxy to explain classical computing and machine learning, and some of the hardware nuances that might make some … Read more
How can you avoid callbacks? To avoid callbacks, you can use any one of the following options: You can use modularization. It breaks callbacks into independent functions. You can use promises. You can use yield with Generators and Promises. What is event-driven programming in Node.js? In Node.js, event-driven programming means as soon as Node starts its server, it initiates … Read more
What is sync in Backbone.js? Sync is a function that is called every time. It attempts to read or save a model to the server. It persists the state of the model to the server. What are the main components of Backbone.js? Main components of Backbone.js: Model – It performs various types of action on … Read more
What is the difference between applications and applets a)Application must be run on local machine whereas applet needs no explicit installation on local machine. b)Application must be run explicitly within a java-compatible virtual machine whereas applet loads and runs itself automatically in a java-enabled browser. d)Application starts execution with its main method whereas applet starts … Read more
Which command is used to install the latest version of Angular CLI? The following command is used to install the latest version of Angular CLI: npm install -g @angular/cli@latest Can we upgrade the older version of Angular that we have installed on our system to the Angular 8 version? If yes, then how? Yes. If … Read more
What is the module in AngularJS? A module is a container for the different parts of the application like a controller, services, filters, directives, etc. It is treated as a main() method. All the dependencies of applications are generally defined in modules only. A module is created using an angular object’s module() method. For example: var … Read more
Why doesn’t Collection extend Cloneable and Serializable From Sun FAQ Page: Many Collection implementations (including all of the ones provided by the JDK) will have a public clone method, but it would be mistake to require it of all Collections. For example, what does it mean to clone a Collection that’s backed by a terabyte … Read more
Name two subclasses of the Text Component class. TextField and TextArea. Where can static modifiers be used They can be applied to variables, methods and even a block of code, static methods and variables are not associated with any instance of class. What advantage do Java’s layout managers provide over traditional windowing systems Java uses layout managers to … Read more
What is URI? What is the purpose of web-based service and what is it’s format? URI stands for Uniform Resource Identifier. It is a string of characters designed for unambiguous identification of resources and extensibility by the URI scheme. The purpose of URI is to locate the resource on the server hosting of the web … Read more