Volkswagen Group Technology Solution Interview Questions, Process, and Tips

Applications should be handled by following a structured process to ensure proper functioning and user satisfaction.

• Identify the purpose and requirements of the application

• Test the application thoroughly before deployment

• Provide user training and support

• Regularly update and maintain the application

• Monitor user feedback and make necessary improvements

To check Java version on server, use command line interface and run java -version command.

• Open command prompt or terminal

• Type java -version and press enter

• The installed Java version will be displayed

HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.

• HashMap uses an array of buckets to store key-value pairs

• Each bucket contains a linked list of entries with the same hash code

• When a key-value pair is added, its hash code is used to determine the bucket and added to the linked list

• When a value is retrieved, its hash code is used to find the bucket and search the linked ...read more

Set methods are used to set values of private variables in a class.

• Set methods are also known as setter methods.

• They are used to ensure encapsulation in object-oriented programming.

• They typically take a parameter and set the value of a private variable to that parameter.

• For example, a set method for a class variable 'name' might look like: public void setName(String name) { this.name = name; }