code: public void setCheckOnStart(boolean checkOnStart) {
  		this.checkOnStart = checkOnStart;
  		getConfig().setProperty(CHECK_ON_START, checkOnStart);
  		if (dayLastChecked.length() == 0) {
  			dayLastChecked = "Never";
  			getConfig().setProperty(DAY_LAST_CHECKED, dayLastChecked);
  		}
  	}
docs: Sets whether or not the "check for updates on start up" is enabled.
  
  @param checkOnStart {@code true} if the "check for updates on start up" should be enabled, {@code false} otherwise.