View Code of Problem 24

import java.util.Scanner;

  public class Main(){
    public static void main(String[] args){
    	Scanner scan=new Scanner(System.in);
      while(scan.hasNext()){
      	int a=scan.nextInt();
      	int b=scan.nextInt();
      	int c=scan.nextInt();
     	double d=(a+b+c)/2.0;
      	double s=Math.sqrt(d*(d-a)*(d-b)*(d-c));
      	System.out.println(String.format("%.2f",s));
        
    }
    }
  	
  }
/*
Main.java:3: error: '{' expected
  public class Main(){
                   ^
1 error
*/