Java入门：基础算法之计算三角形面积

/**
 * @author: 理工云课堂
 * @description: 程序计算三角形的面积.三角形的底和高由用户输入
 */
import java.util.Scanner;
class AreaTriangleDemo {
   public static void main(String args[]) {   
      Scanner scanner = new Scanner(System.in);

      System.out.println("Enter the width of the Triangle:");
      double base = scanner.nextDouble();

      System.out.println("Enter the height of the Triangle:");
      double height = scanner.nextDouble();

      //面积 = (width*height)/2
      double area = (base* height)/2;
      System.out.println("Area of Triangle is: " + area);      
   }
}

Enter the width of the Triangle:
2
Enter the height of the Triangle:
2
Area of Triangle is: 2.0