public class Model { 
     private double angle; 
     private double speed; 
     private static final double G = 9.81; 
     public void setAngle(double angle) { 
          this.angle = angle; 
     } 
     public void setSpeed(double speed) { 
         this.speed = speed; 
     } 
     public double getHeight() { 
          return (Math.pow(speed, 2) * Math.pow(Math.sin(Math.toRadians(angle)), 2)) / (2*G);
    } 
    public double getDistance() { 
       return  (Math.pow(speed, 2) * Math.sin(2*Math.toRadians(angle))) / G; 
    } 
}//Model