In java. write a program that creates an integer array with 50 random values, prompts the user to enter the index of an element in the array between 0 and 49, then displays the corresponding element value. if the specified index is out of bounds, display an error message (e. g. "out of bounds") and ask the user to enter another index. use a while loop that will keep prompting the user until a valid input is received. to handle invalid inputs, write two versions of your program: one that uses exception handling, and one that uses defensive programming. assume a user will always enter numbers. verify that the displayed element number is indeed from the index number entered.

You have a linux system that has a 1000gb hard disk drive, which has a 90gb partition containing an ext4 filesystem mounted to the / directory and a 4gb swap partition. currently, this linux system is only used by a few users for storing small files; however, the department manager wants to upgrade this system and use it to run a database application that will be used by 100 users. the database application and the associated data will take up over 200gb of hard disk space. in addition, these 100 users will store their personal files on the hard disk of the system. each user must have a maximum of 5gb of storage space. the department manager has made it very clear that this system must not exhibit any downtime as a result of hard disk errors. how much hard disk space will you require, and what partitions would you need to ensure that the system will perform as needed? where would these partitions be mounted? what quotas would you implement? what commands would you need to run and what entries to /etc/fstab would you need to create? justify your answers.