1. Using only an if statement create code with for the following. First initialise an int variable called grade to use for the logical tests. a) If a grade is greater than 80 print out "You got an A!".b) If a grade is less than 50 print out "You failed!".c) If a grade equals 100 print out "You scored a perfect score!" .d) If a grade is greater than equal to 50 and less than or equal to 100 print out "You passed!" then...