Freshersworld.com Test Engineer Interview Questions and Answers

Reversing a string involves flipping the order of characters in a given string.

• Create an empty string to store the reversed string

• Iterate through the original string from the end to the beginning

• Append each character to the empty string

• Return the reversed string

C is a general-purpose programming language known for its efficiency and low-level control.

• C was developed by Dennis Ritchie at Bell Labs in the 1970s.

• It is widely used for system programming, embedded systems, and developing operating systems.

• C is known for its simplicity, allowing direct memory manipulation and efficient code execution.

• It influenced the development of many other programming languages, such as C++, Ja

Java is a high-level programming language known for its platform independence and object-oriented approach.

• Java is widely used for developing desktop, web, and mobile applications.

• It is known for its write once, run anywhere (WORA) principle.

• Java programs are compiled into bytecode and executed on a Java Virtual Machine (JVM).

• It supports multithreading, exception handling, and automatic memory management.

• Popular framew...read more

Lambda is a function that allows you to write and use small, anonymous functions in programming languages.

• Lambda functions are often used in functional programming languages.

• They are anonymous, meaning they don't have a name.

• Lambdas can be used as arguments to higher-order functions.

• They are commonly used for tasks that require a short, one-time function.

• Lambda functions can be written in various programming languages,

Answers to questions related to Java connection query, showing all tables in SQL, and basic query in Linux.

• Java connection query is used to establish a connection between Java application and database.

• To show all tables in SQL, use the command 'SHOW TABLES;' or 'SELECT table_name FROM information_schema.tables WHERE table_schema = 'database_name';'

• Basic query in Linux includes commands like 'ls' to list files, 'cd' to ...read more