As a junior developer at IT Solutions, you are requested to create the following programs.

Answer ALL the questions in this section.

Question $1(20$ Marks$)$

Write a complete Java program called Repeat that uses a for loop structure to prompt the user to enter five numbers. Include an output statement $($System$.$out$)$ to display the sum of all five numbers at the end of the loop and the average.

Question $2(20$ Marks$)$

Write a complete Java program using a while loop structure, name your program Q$2.$ The program prompts the user to enter a series of names, and enters $"1"$ to stop the loop. Output the total number of names entered using a System.out statement. Your sentinel value is $"1".$

Question $3(20$ Marks$)$

Write a complete Java program called Q$3$ that prompts the user to input two integer values and outputs the largest and smallest numbers. The program includes JOptionPane for both the input and output statements. $($Your program must include decision statements$)$

Question $4(20$ Marks$)$

Write a Java program called Decision that includes a while loop to prompt the user to enter $5$ marks using the JOptionPane statement and a System.out statement to output a message inside the loop highlighting a pass mark $>=50$ and $<=100.$ Any other mark will output a message stating it's a fail. Example of the expected output is as follows:

$55$ is a pass

$12$ is a fail