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3460:210 Lecture Notes - Lecture 2: Triangle Center

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School
University of Akron
Department
Computer Science
Course
3460:210
Professor
Lianghu Tian

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Document Summary

This triangle will have: (1) three private point variables (2) a public function setpoints to set three private point variables. The function takes three point variables in arguments (3) a public function getarea to calculate triangle area and return the calculated area (4) a public function getcenterpoint to return the geometric center point of the triangle. You may add an additional constructor which takes 3 points as pass-in arguments. Where a, b and c are three corner points of a triangle. Note: the sequence of three points may affect the sign of the returned area. (clockwise direction) and a triangle with (anti-clockwise direction).

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Related Questions

5. Consider the following class: import java.util.Scanner; public class Money private int dollars; private int cents; public Money (int d, int c) { dollars = d; cents = c; /* Point 1 */ public String toString() { String result; if (cents > 100) int totalCents = dollars * 100 + cents; dollars = totalCents / 100; cents = total Cents % 100; /* Point 2 */ /* Point 3 */ result = "$" + dollars + ", " + cents + "C"; return result; public static void main(String[] yourGrandfather) Scanner keyboard - new Scanner (System.in); Money amount; int C; /* Point 4 */ System.out.print("Enter an amount in cents: "); C = keyboard.nextInt (); amount = new Money (c/ 100, CX 100); System.out.println("You have: " + amount.toString()); The above program compiles and runs without error. Which variables are in scope at each of the points marked by comments in the above class? In other words, if each of these comments were replaced by an actual Java statement, which variables could be used in this statement without a prefix (that is, without having to write the name of a class or other variable in front of the variable name) and without the compiler reporting an unknown variable error? List each variable that is in scope at each of the points marked by comments in the above class, and indicate whether it is an instance variable, a formal parameter, or a local variable. Note that you will be penalized for every variable that is out of scope at a given point but that you list as being in scope at that point.