More Supermarket Interview Questions and Answers

Yes, percentage in technical subjects is checked for Junior Engineer position.

• Technical subjects are a crucial part of the Junior Engineer role.

• The percentage in technical subjects is checked to assess the candidate's knowledge and understanding of the subject.

• The weightage given to technical subjects may vary depending on the company and job profile.

• Candidates should focus on scoring well in technical subjects to increase their chances of getting selected.

• For example, if the...read more

Array is a fixed-size data structure while ArrayList is a dynamic-size data structure in Java.

• Array is a fixed-size collection of elements of the same data type, while ArrayList is a dynamic-size collection that can grow or shrink as needed.

• Arrays can store primitive data types and objects, while ArrayList can only store objects.

• Arrays require a specified size at the time of creation, while ArrayList can dynamically resize itself.

• Arrays use square brackets [] for declaration,...read more

Spring Boot is a Java-based framework used to create stand-alone, production-grade Spring-based Applications.

• Spring Boot simplifies the process of developing and deploying Spring applications.

• It provides a set of pre-configured tools and conventions to get started quickly.

• Spring Boot eliminates the need for manual configuration and boilerplate code.

• It includes embedded servers like Tomcat, Jetty, or Undertow for easy deployment.

• Spring Boot allows for easy integration with oth...read more

A constructor is a special type of method in a class that is automatically called when an object of that class is created.

• Constructors have the same name as the class they belong to

• Constructors do not have a return type

• Constructors can be used to initialize the object's state or perform any necessary setup

• Example: public class Car { public Car() { // constructor code here } }

HashMap is a data structure that stores key-value pairs and allows for fast retrieval of values based on keys.

• HashMap is part of the Java Collections framework.

• It uses hashing to store key-value pairs in an array.

• Example: HashMap<String, Integer> map = new HashMap<>(); map.put("key1", 1); int value = map.get("key1");