10+ Andromeda Shipping Interview Questions and Answers

A program to count the number of vowels and consonants in a given string.

• Iterate through each character in the string

• Check if the character is a vowel or consonant

• Increment the respective count

• Return the counts of vowels and consonants

Truncate removes all data from a table while drop deletes the table itself.

• Truncate is faster than drop as it only removes data and not the table structure

• Truncate cannot be rolled back while drop can be

• Truncate resets the identity of the table while drop does not

• Truncate can only be used on tables while drop can be used on tables, views, and indexes

Program to delete middle node from linked list

• Traverse the list to find the middle node

• Delete the middle node by updating pointers

• Handle edge cases like even number of nodes

Interview questions for Software Developer covering OOPs, Data Structures and Algorithms, and DBMS.

• OOPs: 4 pillars, class, object, and interface

• Data Structures: array, LinkedList, stack, queues, tree, graph, and their operations

• Algorithms: Fibonacci series, palindrome, array min max questions

• DBMS: general questions

Program to reverse a string

• Use a loop to iterate through the string and append each character to a new string in reverse order

• Alternatively, use built-in string functions like reverse() or slice()

Program to find duplicate number in array of 1 to 100 items.

• Iterate through array and use a set to keep track of seen numbers.

• If a number is already in set, it is a duplicate.

• Return the duplicate number found.

Static keyword is used to define a class-level variable or method that can be accessed without creating an instance of the class.

• Static variables are shared among all instances of a class

• Static methods can be called without creating an object of the class

• Static keyword can also be used to define a static block of code that gets executed only once when the class is loaded

• Example: public static int count = 0; or public static void printMessage() {}

I wish to work on developing applications using artificial intelligence and machine learning technologies.

• Passionate about developing intelligent systems that can learn and adapt

• Interested in working on projects involving natural language processing, computer vision, and predictive analytics

• Experience with tools and frameworks like TensorFlow, PyTorch, and scikit-learn

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It can be achieved through method overloading or method overriding.

• Example: A shape class can have different subclasses like circle, square, and triangle. Each subclass can have its own implementation of the draw method.

• Polymorphism makes code more flexible and reusable.

Regression testing ensures changes don't break existing functionality. Functional testing checks if software meets requirements. Smoke testing checks basic functionality.

• Regression testing verifies that changes to the software do not break existing functionality

• Functional testing checks if the software meets the specified requirements

• Smoke testing checks the basic functionality of the software

• Regression testing is usually automated

• Functional testing can be manual or automated...read more

A Java program to calculate the power of a number using recursion.

• Create a recursive function that takes two parameters: the number and the power.

• If the power is 0, return 1.

• If the power is 1, return the number.

• Otherwise, recursively call the function with the number multiplied by itself and the power decreased by 1.

• Return the result.

Print prime numbers between 1-100 alternately using Java.

• Create a function to check if a number is prime or not.

• Use a loop to iterate through numbers 1-100.

• Alternate between printing prime and non-prime numbers.

• Use a boolean variable to keep track of whether the last printed number was prime or not.

A program to print prime numbers between 1-100.

• Iterate from 1 to 100

• For each number, check if it is divisible by any number from 2 to itself-1

• If not divisible by any number, it is a prime number

Overloading is when multiple methods have the same name but different parameters. Overriding is when a subclass provides a different implementation of a method inherited from its superclass.

• Overloading is compile-time polymorphism, while overriding is runtime polymorphism.

• Overloading allows a class to have multiple methods with the same name but different parameters.

• Overriding is used to provide a different implementation of a method in a subclass.

• Overloading is determined at...read more

To create a thread in Java, you can extend the Thread class or implement the Runnable interface.

• Extend the Thread class and override the run() method

• Implement the Runnable interface and pass an instance to the Thread constructor

• Start the thread using the start() method

• Example: Thread thread = new Thread(() -> System.out.println("Hello World")); thread.start();

Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as a method in its superclass.

• Overloading is compile-time polymorphism while overriding is runtime polymorphism

• Overloading is used to provide different ways of calling a method with different parameters

• Overriding is used to provide a specific implementation of a method in a subclass

• Overloading can be done in the same...read more

Recursion is a programming concept where a function calls itself to solve a problem by breaking it down into smaller subproblems.

• Recursion involves a base case and a recursive case

• It is commonly used to solve problems that can be divided into smaller, similar subproblems

• Examples include factorial calculation, Fibonacci sequence, and tree traversal

A constructor is a special method used to initialize objects in a class.

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

• They are called automatically when an object is created.

• Constructors can have parameters to initialize object properties.

• They can be overloaded to have multiple versions with different parameters.

• Constructors can also call other constructors using the 'this' keyword.