Risk and Finance Technology Application Developer Interview Questions and Answers

Memory management is crucial for efficient application development.

• Use dynamic memory allocation only when necessary.

• Avoid memory leaks by freeing allocated memory when it is no longer needed.

• Use data structures that minimize memory usage.

• Optimize code to reduce memory usage.

• Use tools like valgrind to detect memory errors and leaks.

Improving app performance requires optimizing code, reducing network calls, and minimizing resource usage.

• Optimize code by identifying and fixing bottlenecks

• Reduce network calls by caching data and using efficient protocols

• Minimize resource usage by releasing unused memory and optimizing database queries

We can use Runnable to execute code in a separate thread.

• When we need to perform a task in the background without blocking the main thread.

• When we need to execute code concurrently.

• When we need to delay the execution of code.

• When we need to schedule a task to run at a specific time.

• When we need to implement a timer or a countdown.

• Example: updating UI elements while performing a long-running task in the background.

• Example: scheduling a task to run every 5 seconds.

• Example: dela...read more