I was tasked to create a program that will let the user choose either to compute the area and perimeter of either a rectangle or triangle. However, I am having a problem with the perimeter part of triangle because the perimeter of a rectangle should be a+b>c or b+c> a, and this is the condition representation that I'd like to use: a+b>c, b+c>a, a+c>b,a!=0, b!=0, c!=0. By the way, I used abstract methods as it is what our professor taught us today. Here is my main class code:
public class Main {
public static void main(String[]args) {
Scanner in = new Scanner(System.in);
int choice = 0;
System.out.println("[1] Rectangle \n[2] Triangle\n Input your choice:");
choice = in.nextInt();
Rectangle obj = new Rectangle(0,0);
Triangle obj1 = new Triangle(0,0,0,0,0);
if (choice == 1)
{
System.out.println("You chose rectangle.");
System.out.println("Please input width: ");
obj.setData1(in.nextInt());
System.out.println("Please input length: ");
obj.setData2(in.nextInt());
obj.computePerimeter();
obj.computeArea();
obj.display();
}
else if (choice == 2)
{
System.out.println("You chose triangle.");
System.out.println("Please input value for a: ");
obj1.setData1(in.nextInt());
System.out.println("Please input value for b: ");
obj1.setData2(in.nextInt());
System.out.println("Please input value for c: ");
obj1.setC(in.nextInt());
System.out.println("Please input value for base: ");
obj1.setBase(in.nextInt());
System.out.println("Please input value for height: ");
obj1.setHeight(in.nextInt());
obj1.computePerimeter();
obj1.computeArea();
obj1.display();
} else{
System.out.println("Invalid value.");
}
}
}
