In Section B of ICSE 2018 Computer Application paper, a Question of 15 marks was asked. Students were expected to write a Java program to check whether an input number was a Pronic number or not. The actual question appeared in the following form: Section B, Question 5: Write a program to input a number and check and print whether it is a Pronic number or not. (Pronic number is the number which is the product of two consecutive integers) Examples: 12=3×4, 20=4×5, 42=6×7 Before getting into programming, let us first develop our understanding of Pronic numbers. Pronic numbers are also called oblong numbers, heteromecic numbers, or rectangular numbers. Examples of first few pronic numbers are: 0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156. Consider number 12 from examples given in the question above. Factors of number 12 are: 1,2,3,4,6,12 (total six numbers). Out of 6 numbers let us pick a unique pair of numbers which when multiplied together give 1...