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263 lines (162 loc) · 6.14 KB
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// Mario Goins II
// CSC 210 12/02/16
package triangle;
import java.util.Scanner;
public class Triangle {
// Variables for the sides
private int sideA;
private int sideB;
private int sideC;
// constructor
public Triangle() {
}
public Triangle(int newSideA, int newSideB, int newSideC) {
sideA = newSideA;
sideB = newSideB;
sideC = newSideC;
}
// accessors
public int getSideA() {
return sideA;
}
public int getSideB() {
return sideB;
}
public int getSideC() {
return sideC;
}
// Mutators
public void setSideA(int num) {
sideA = num;
}
public void setSideB(int num) {
sideB = num;
}
public void setSideC(int num) {
sideC = num;
}
// Methods for triangle type
public boolean isScalene(Triangle triangleToCheck) {
int checkA = triangleToCheck.getSideA();
int checkB = triangleToCheck.getSideB();
int checkC = triangleToCheck.getSideC();
if (checkA == checkB ^ checkB == checkC ^ checkA == checkC) {
System.out.println("Scalene Triangle: False");
return false;
} else {
System.out.println("Scalene Triangle: True");
return true;
}
}
public boolean isRight(Triangle triangleToCheck) {
int checkA = triangleToCheck.getSideA();
int checkB = triangleToCheck.getSideB();
int checkC = triangleToCheck.getSideC();
if (Math.pow(checkA,2) + Math.pow(checkB,2) == Math.pow(checkC,2)) {
System.out.println("Right Triangle: True");
return true;
} else {
System.out.println("Right Triangle: False");
return false;
}
}
public boolean isIsosceles(Triangle triangleToCheck) {
int checkA = triangleToCheck.getSideA();
int checkB = triangleToCheck.getSideB();
int checkC = triangleToCheck.getSideC();
if (checkA == checkB || checkA == checkC || checkB == checkC) {
System.out.println("Isosceles Triangle: True");
return true;
} else {
System.out.println("Isosceles Triangle: False");
return false;
}
}
public boolean isEquilateral(Triangle triangleToCheck) {
int checkA = triangleToCheck.getSideA();
int checkB = triangleToCheck.getSideB();
int checkC = triangleToCheck.getSideC();
if (checkA == checkB && checkB == checkC) {
System.out.println("Equilateral Triangle: True");
return true;
} else {
System.out.println("Equilateral Triangle: False");
return false;
}
}
public boolean isValid(Triangle triangleToCheck) {
int checkA = triangleToCheck.getSideA();
int checkB = triangleToCheck.getSideB();
int checkC = triangleToCheck.getSideC();
if (checkA + checkB <= checkC) {
System.out.println("Valid Triangle: False");
return false;
} else {
System.out.println("Valid Triangle: True");
return true;
}
}
// Method for user input
public static int getUserSide(String sideLabel) {
System.out.print("Enter the length of side " + sideLabel + ". (Must be greater than zero!): ");
Scanner scanner = new Scanner(System.in);
int userSide = 0;
// Loop for triangle input being invalid
while (userSide <= 0) {
if (scanner.hasNextInt()) {
userSide = scanner.nextInt();
if (userSide > 0) {
return userSide;
} else {
// Choice out of range
System.out.println("Side length must be greater than zero!");
System.out.println("");
}
} else {
// Choice is not an int
System.out.println("Invalid length! Try again.");
System.out.println("");
scanner.next();
}
}
return userSide;
}
// Method for user choice
public static int userChoice() {
System.out.print("Read in a new triangle? (-1 for no, 1 for yes):");
int userChoice = 0;
Scanner scanner = new Scanner(System.in);
// Loop playerChoice is invalid
while (userChoice != -1 || userChoice != 1) {
if (scanner.hasNextInt()) {
userChoice = scanner.nextInt();
if (userChoice == -1 || userChoice == 1) {
return userChoice;
} else {
// out of range
System.out.print("Enter a valid choice! (-1 for no, 1 for yes):");
}
} else {
// Choice is not an int
System.out.print("Enter a valid choice! (-1 for no, 1 for yes):");
scanner.next();
}
}
return userChoice;
}
public static void main(String[] args) {
while (true) {
int userSideA = getUserSide("A");
int userSideB = getUserSide("B");
int userSideC = getUserSide("C");
Triangle newTriangle = new Triangle(userSideA, userSideB, userSideC);
newTriangle.isValid(newTriangle);
newTriangle.isRight(newTriangle);
newTriangle.isScalene(newTriangle);
newTriangle.isIsosceles(newTriangle);
newTriangle.isEquilateral(newTriangle);
if (userChoice() < 0) {
break;
}
}
}