triangle
public text v1 · immutablepublic void calcArea( )
{
double s;
s = perimeter/2;
theArea =Math.sqrt(s*(s-sideA)*(s-sideB)*(s-sideC));
}
public void print( )
{
System.out.println("Side entered are: "+sideA+ ","+ sideB+" ,"+ sideC );
System.out.printf("Area == %.5f\n\n",theArea);
}
}