CS302 Fall 2012 Exam 2 Solution

// Part II: #1 Write a code fragment that replaces Wisc. or Wis. with WI
    //assume city references a city, state and zip code
    // for example "Windsor, Wis. 53598"; 

    String WI = "WI ";
    String S = "Wis. ";
    if ( city.contains(S) )  {
      int i = city.indexOf(S);
      city  = city.substring(0,i) + WI + city.substring(i+S.length());
    }
    S = "Wisc. ";
    if ( city.contains(S) )  {
      int i = city.indexOf(S);
      city  = city.substring(0,i) + WI + city.substring(i+S.length());
    }

// Part II: #2 Complete the update(double t) of the Ship class.
public void update( double t ) {
  if ( ! destroyed ) {
    updatePosition(t);

    if ( getPosition().getY()-getRadius() <= 0 || 
         getPosition().getY()+getRadius() >= Config.GAME_HEIGHT-1 ) {
      setRotation( -getRotation() );
    }

    if ( getPosition().getX()-getRadius() <=0 || 
         getPosition().getX()+getRadius() >= Config.GAME_WIDTH-1 ) {
           destroy();
    }
  }
}