Question 1: Using stack to implement queue. (You can define your own stack class, or use the Stack class in Java API)
Question 2: Using queue to implement stack. (You can define your own queue class, or use the Queue class in Java API)
Demo them in a test program
Requirements: Submit the repl.it links of the two programs
Please note that you need to submit two repl.it links. You can copy and paste the two links in a .txt/.docx file and upload the file. You can also submit the second link as comments in the assignment submission.