Page 137 - CA_Blue( J )_Class9
P. 137

You will get the following output:



















                  Program 5     Write a program to display the area of a triangle using Heron's formula.

                   1      import java.io.*;

                   2      class Program5
                          {
                   3
                   4          public static void main(String args[])throws IOException

                   5          {
                                  InputStreamReader isr = new InputStreamReader(System.in);
                   6
                                  BufferedReader br= new BufferedReader(isr);
                   7
                   8              int a,b,c;

                   9              double s,ar;
                  10              System.out.println("Enter three sides of a triangle :");

                  11              a=Integer.parseInt(br.readLine());
                                  b=Integer.parseInt(br.readLine());
                  12
                                  c=Integer.parseInt(br.readLine());
                  13
                                  s=(a+b+c)/2.0;
                  14
                  15              ar= Math.sqrt(s*(s-a)*(s-b)*(s-c));
                  16              System.out.println("Area of triangle "+ar);
                              }
                  17
                          }
                  18


















                                                                                                   Input in Java   135
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