Siemens Healthineers Software Developer Interview Questions and Answers

Reverse each word in a sentence without using default function.

• Split the sentence into words

• Iterate through each word and reverse it

• Join the reversed words back into a sentence

Find 1st, 2nd, and 3rd highest integers from an array.

• Sort the array in descending order.

• Retrieve the first three elements from the sorted array.

• Handle cases where array length is less than 3.

Use depth-first search to traverse the tree and identify leaf nodes.

• Implement depth-first search algorithm to traverse the tree.

• Identify nodes with no children as leaf nodes.

• Store leaf nodes in an array for retrieval.

Fibonacci series using recursion is a classic programming problem where each number is the sum of the two preceding ones.

• Define a recursive function that takes an integer n as input

• Base case: if n is 0 or 1, return n

• Recursive case: return the sum of the previous two Fibonacci numbers

• Call the function recursively with n-1 and n-2 until base case is reached

Threads are handled by creating and managing lightweight processes within a program to improve performance and responsiveness.

• Threads are managed by the operating system or a thread library.

• Threads share the same memory space within a process.

• Threads can communicate with each other through shared memory or message passing.

• Thread synchronization is important to prevent race conditions and ensure data consistency.

• Examples of thread handling in programming languages include Java...read more

Multithreading in Java allows multiple threads to execute concurrently within a single program.

• Java provides built-in support for multithreading through the java.lang.Thread class.

• Threads can be created by extending the Thread class or implementing the Runnable interface.

• Synchronization is used to prevent race conditions and ensure thread safety.

• Java also provides several classes and interfaces for managing thread execution, such as Executor, ExecutorService, and Future.

• Examp...read more

We primarily use the MERN stack for our web development projects.

• MERN stack includes MongoDB, Express.js, React, and Node.js

• MongoDB is used as the database to store data

• Express.js is used as the backend framework for building APIs

• React is used for building the user interface

• Node.js is used as the server-side runtime environment