// exj5.java    example file  iteration, if then else

public class exj5  // class name same as file name
{
  public exj5() // constructor same as class name
  {

    System.out.println("exj5.java running");

    double x = 2.0;             // declare test variable
    int i = 3;

    if(x < 3.0) // <  >  <=  >=  ==  !=  compare operations
    {
      System.out.println("compare < > <= >= == != x="+x);
    }

    if(x > 3.0 || i == 3 && i > 2) //  || is or,  && is and
    {
      System.out.println("logic || is or, && is and i="+i);
    }

    if( x > 3.0)
    {
      System.out.println("x > 3.0");
    }
    else if(i < 3)        // optional
    {
      System.out.println("i < 3");
    }
    else                  // optional, get here if none of the above true
    {
      System.out.println("none of the above");
    } // end if  optional comment

  } // end constructor exj5       optional comment

  public static void main (String[] args)
  {
    new exj5();
  }
} // end class exj5              optional comment