Python 3 (not java)1.assume that word is a variable of type string that has been assigned a value. write an expression whose value is a string consisting of the last three characters of the value of word. so if the value of word were "biggest" the expression's value would be "est".2.given three string variables that have been given values, firstname, middlename, and lastname, write an expression whose value is the initials of the three names: the first letter of each, joined together. so if firstname, middlename, and lastname, had the values "john", "fitzgerald", and "kennedy", the expression's value would be jfk". alternatively, if firstname, middlename, and lastname, had the values "franklin", "delano", and "roosevelt", the expression's value would be "fdr".3.write an expression that evaluates to true if and only if the variables profits and losses are exactly equal.

#part 1.

#declare and initialize string variable word

word="welcome"

# extract the last 3 characters of the string and print

print("last 3 characters of word is: ",word[-3:])

#part 2.

#declare and initialize string variables

firstName="John"

middleName="Fitzgerald"

lastName="Kennedy"

#print the initials of all names

print("initials of name is: ",firstName[0]+middleName[0]+lastName[0])

#part 3.

#declare and initialize profit and loss

profits=10

losses=10

# if will be true only when profits equals to losses

if profits==losses:

   print("both are equal")

Explanation:

In part 1, declare and initialize string variable word with "welcome" then extract last 3 characters of the string and print it. In part 2, declare and initialize names variable then find the first character of each name that is character at 0 index. Append all 3 and print that value. In part 3, declare and initialize profits with 10 and losses with 10. In the if condition, it will print  "both are equal" if both values are equal.

Output:

last 3 characters of word is:  ome                                                                                            

initials of name is:  JFK                                                                                                    

both are equal