10+ AJSK Software Services Interview Questions and Answers

Function to swap two variables and possible exceptions

• Function should take two variables as input

• Use a temporary variable to swap the values

• Possible exceptions include null pointer exception or out of bounds exception

I would use a binary format like JPEG or PNG to save images.

• JPEG and PNG are common binary formats used to save images.

• These formats use compression to reduce file size without losing quality.

• Other options include BMP, GIF, and TIFF, but they may not be as efficient.

• Images can also be saved as arrays of pixels or as vectors, depending on the type of image.

• The choice of data structure depends on the specific use case and requirements.

Arrays store elements in contiguous memory locations, while LinkedLists store elements in nodes with pointers to the next element.

• Arrays have constant time access to elements using index, while LinkedLists have O(n) access time as they need to traverse from the beginning.

• Arrays have fixed size, while LinkedLists can dynamically grow and shrink in size.

• Arrays are better for random access and search operations, while LinkedLists are better for insertions and deletions in the mi...read more

Use a hashmap to store frequency of each number in the array for efficient retrieval of maximum occurring number.

• Use a hashmap to store the frequency of each number in the array.

• Iterate through the array and update the frequency count in the hashmap.

• Find the number with the highest frequency in the hashmap to get the maximum occurring number.

Pre/post increment/decrement operators are used to increase/decrease the value of a variable by 1.

• Pre-increment operator (++x) increases the value of x by 1 before using it in an expression.

• Post-increment operator (x++) increases the value of x by 1 after using it in an expression.

• Pre-decrement operator (--x) decreases the value of x by 1 before using it in an expression.

• Post-decrement operator (x--) decreases the value of x by 1 after using it in an expression.

• These operator...read more

No, Function Overloading is not the only example of Compile Time Polymorphism.

• Function Templates are another example of Compile Time Polymorphism where a single function can operate on different data types.

• Operator Overloading is also an example of Compile Time Polymorphism where operators can be overloaded to work with different data types.

• Static Polymorphism achieved through method overloading is another example of Compile Time Polymorphism.

Answering questions related to LinkedList operations and Circular LinkedList.

• LinkedList Class: Implement a class with nodes containing data and a reference to the next node.

• Insertion: Add a new node at the beginning, end, or at a specific position in the LinkedList.

• Deletion: Remove a node by updating references to skip over it.

• Reversing: Traverse the LinkedList and reverse the links between nodes.

• Sorting: Implement a sorting algorithm like bubble sort or merge sort on the Lin...read more

Multi-Threading in Java allows multiple threads to execute concurrently. Generics in Java enable type-safe collections and classes.

• Multi-Threading in Java allows for concurrent execution of multiple threads.

• Generics in Java enable type-safe collections and classes by allowing the use of parameterized types.

• Example of Multi-Threading: creating a new thread using the Thread class and implementing the run() method.

• Example of Generics: defining a generic class like ArrayList to s...read more

Designing a carrom board game system

• Define game rules and mechanics

• Create game board and pieces

• Implement player turns and scoring system

• Include AI for single player mode

• Consider multiplayer options and networking

• Test and debug thoroughly

Program to find middle of a linked list

• Traverse the linked list using two pointers, one moving twice as fast as the other

• When the faster pointer reaches the end, the slower pointer will be at the middle

• Handle even and odd length linked lists separately

Use recursion to reverse the string without using loops or other data structures.

• Create a recursive function that takes the string as input.

• In the function, check if the string is empty or has only one character, return the string in that case.

• Otherwise, call the function recursively with the substring excluding the first character and concatenate the first character at the end.

Pillars of OOP are Inheritance, Encapsulation, Abstraction, and Polymorphism. Real life example: Vehicles.

• Inheritance: Car and Bike classes inheriting from Vehicle class.

• Encapsulation: Data hiding in a class to protect it from outside interference.

• Abstraction: Using a remote control to operate a TV without knowing its internal workings.

• Polymorphism: Overloading a method with different parameters in a class.

Bentley Systems is a global leader in infrastructure engineering software, providing innovative solutions for sustainable development.

• Bentley Systems offers cutting-edge technology and tools for infrastructure engineering projects.

• The company has a strong reputation for innovation and sustainability in the industry.

• Bentley Systems has a global presence, providing opportunities to work on diverse projects around the world.

• The company values continuous learning and professional...read more