Java Program to Find the Area of Trapezium

//Java Program to Find the Area of a Trapezium

import java.io.BufferedReader;

import java.io.InputStreamReader;

public class AreaOfATrapezium {

    // Function to find area of a trapezium

    public static void main(String[] args) {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        double l1,l2,height;

        System.out.println("Enter the length of the two parallel sides 

                                     and the height of the trapezium");

        try{

            l1=Double.parseDouble(br.readLine());

            l2=Double.parseDouble(br.readLine());

            height=Double.parseDouble(br.readLine());

        }catch (Exception e){

            System.out.println("An error occurred");

            return;

        }

        if(l1<=0 || l2<=0 || height<=0){

            System.out.println("Wrong Input");

        }

        System.out.println("Area = " + (l1+l2)*height/2 );

    }

}