Syflex Techno Solution Android Mobile Application Developer Interview Questions and Answers

getch() is a function in C that reads a single character from the keyboard without echoing it.

• getch() is defined in the header file.

• It is commonly used to read single characters for menu selection or password input.

• The character read by getch() is not displayed on the screen.

• getch() is a blocking function, meaning it waits for user input before proceeding.

• Example: char ch = getch();

Polymorphism is the ability of an object to take on many forms. In Java, it is achieved through method overriding and interfaces.

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

• Method overriding is when a subclass provides its own implementation of a method that is already defined in its superclass.

• Interfaces allow for polymorphism by defining a set of methods that a clas...read more

POST and GET are HTTP methods used to send data to a server. POST is used to send data in the request body while GET sends data in the URL.

• POST is more secure as it doesn't expose data in the URL

• GET has a limit on the amount of data that can be sent

• POST is used for submitting forms, uploading files, etc.

• GET is used for fetching data from the server

• Examples: POST - submitting a login form, GET - fetching search results

Software development life cycle is a process of planning, designing, developing, testing, and deploying software.

• SDLC is a framework that guides the development of software.

• It involves several stages such as planning, designing, coding, testing, and deployment.

• Each stage has its own set of activities and deliverables.

• The stages are often iterative, meaning they may be repeated until the desired outcome is achieved.

• Exam...read more

DBMS queries are used to interact with a database. Common queries include select, delete, insert, update, and drop.

• SELECT: Retrieves data from a database table

• DELETE: Removes data from a database table

• INSERT: Adds new data into a database table

• UPDATE: Modifies existing data in a database table

• DROP: Deletes an entire database table

Studio.h is a header file in C programming used for input/output operations.

• Studio.h contains functions like printf() and scanf() for input/output operations.

• Preprocessor directives like #define and #include are used to include the header file.

• Studio.h is part of the standard C library and is included in most C compilers.

• It is important to include the header file in your program if you plan to use input/output function

TCS is a leading global IT services company with a strong reputation for innovation and client satisfaction.

• TCS has a proven track record of delivering high-quality IT solutions to clients worldwide.

• TCS offers a wide range of services and solutions, including consulting, digital transformation, and business process outsourcing.

• TCS has a strong focus on innovation and invests heavily in research and development.

• TCS has ...read more

Code for arranging numbers in sorted order

• Use a sorting algorithm like bubble sort, insertion sort, or quicksort

• Determine if the numbers are integers or floating point numbers

• Consider the size of the input array and the time complexity of the algorithm

• Check for edge cases like empty array or array with only one element

Data mining is the process of discovering patterns and insights from large datasets.

• It involves using statistical and machine learning techniques to analyze data

• The goal is to extract useful information and knowledge from the data

• Examples include identifying customer buying patterns or predicting stock prices

• Data mining can also be used in fields such as healthcare to identify disease risk factors

Compiler is needed to translate high-level programming language code into machine code.

• Compilers are used to convert human-readable code into machine-readable code.

• They help in detecting errors and bugs in the code before execution.

• Compilers optimize the code for better performance and efficiency.

• Examples of compilers include GCC, Clang, and Visual C++.