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1. Hello World2. Add Two Numbers3. Swap Two Numbers4. Find ASCII Value of a Character5. Even or Odd Number6. Largest of Two Numbers7. Largest of Three Numbers8. Positive or Negative Number9. Area of Circle10. Area of Rectangle11. Area of Triangle12. Simple Interest13. Compound Interest14. Celsius to Fahrenheit15. Sum of N Natural Numbers16. Power without Math.pow()17. ASCII to Character18. Character to ASCII19. Convert Seconds to Hours and Minutes20. Gross Salary Calculation

Area of Triangle in Java

Calculate the area of a triangle using base and height.

BeginnerModule 1: Basic Java ProgramsExample 11 of 20
area-of-triangle.java
1import java.util.Scanner;
2

3public class Main {
4    public static void main(String[] args) {
5        Scanner sc = new Scanner(System.in);
6

7        System.out.print("Enter base: ");
8        double base = sc.nextDouble();
9        System.out.print("Enter height: ");
10        double height = sc.nextDouble();
11

12        double area = 0.5 * base * height;
13        System.out.println("Area of triangle = " + area);
14

15        sc.close();
16    }
17}

Output

Enter base: 10
Enter height: 5
Area of triangle = 25.0

What's going on

We use the formula area = 1/2 × base × height.

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