May 06

DropBall.java Uses a while loop to determine how long it takes a ball to fall from the top of the Washington Monument to the ground. #Programming Code Examples #Java/J2EE/J2ME #Basic Java 

/** Simulating dropping a ball from the top of the Washington
 *  Monument. The program outputs the height of the ball each
 *  second until the ball hits the ground.
 *
 *  Taken from Core Web Programming from
 *  Prentice Hall and Sun Microsystems Press,
 *  .
 *  © 2001 Marty Hall and Larry Brown;
 *  may be freely used or adapted.
 */

public class DropBall {
  public static void main(String[] args) {
    int time = 0;
    double start = 550.0, drop = 0.0;
    double height = start;
    while (height > 0) {
      System.out.println("After " + time +
                   (time==1 ? " second, " : " seconds,") +
                   "the ball is at " + height + " feet.");
      time++;
      drop = freeFall(time);
      height = start - drop;
    }
    System.out.println("Before " + time + " seconds could " +
                       "expire, the ball hit the ground!");
  }

  /** Calculate the distance in feet for an object in
   *  free fall.
   */

  public static double freeFall (float time) {
    // Gravitational constant is 32 feet per second squared
    return(16.0 * time * time); // 1/2 gt^2
  }
}

Note: Brought from our old site: http://www.salearningschool.com/example_codes/ on Jan 2nd, 2017 From: http://sitestree.com/?p=10214
Categories:Programming Code Examples, Java/J2EE/J2ME, Basic Java
Tags:Java/J2EE/J2MEBasic Java
Post Data:2017-01-02 16:04:23

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