Jain Digivast Technology And Consulting Software Engineer Interview Questions, Process, and Tips

I am a passionate software engineer with 5 years of experience in developing web applications using Java, Spring, and Angular.

• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Passionate about creating innovative web applications

Main principles of OOP include encapsulation, inheritance, and polymorphism.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: Objects of different classes can be treated as objects of a common superclass.

• Abstraction: Hiding the complex implementation details and showing only the n...read more

Spring Boot is a Java-based framework used to create standalone, production-grade Spring-based applications.

• Spring Boot simplifies the process of creating Spring applications by providing a set of pre-configured defaults.

• It allows developers to quickly set up and run standalone Spring applications with minimal configuration.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to deploy ...read more

Checked exceptions are checked at compile time, while unchecked exceptions are not.

• Checked exceptions must be either caught or declared in the method signature using 'throws'

• Unchecked exceptions do not need to be caught or declared

• Examples of checked exceptions: IOException, SQLException

• Examples of unchecked exceptions: NullPointerException, ArrayIndexOutOfBoundsException

Spring Boot is a framework that simplifies the development of Java applications by providing pre-configured settings and tools.

• Spring Boot eliminates the need for manual configuration by providing defaults for most settings.

• It allows developers to quickly set up and run standalone Spring-based applications.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to deploy applications.

• It of...read more

In Java, == is used to compare references, while equals() is used to compare values of objects.

• == compares references, while equals() compares values

• == is used for primitive data types, while equals() is used for objects

• Example: String str1 = new String("hello"); String str2 = new String("hello"); str1 == str2 will be false, but str1.equals(str2) will be true