Define and invoke the constructor for a HashSet variable named colors capable of holding strings. Given the variable colors defined in Question 13, write the code to add "red" and "blue" to the set,...

Define and invoke the constructor for a HashSet variable named colors

capable of holding strings.

Given the variable colors defined in Question 13, write the code to

add "red" and "blue" to the set, output if the set contains "blue", then

remove "blue" from the set.