Section Assignment 1: Defend Democracy Karel

gistfile1.java

import stanford.karel.SuperKarel;

public class defendDemocracyKarel extends SuperKarel {
	/* This program is designed to clean the ballots in Karel's world. If there is no
	 * beeper in the centre, this indicates voter intent
	 * and  Karel clears that whole column.
	 */
	public void run() {
		while (frontIsClear()) {
			move();
			cleanBallot();
			move();
		}
	}
	private void cleanBallot() {
		/*This method cleans the ballot if the centre corner is empty. It does nothing otherwise.
		 * Precondition - Karel starts on centre corner facing East
		 * Postcondition - Karel ends on centre corner facing East
		 */
		if (noBeepersPresent()) {
			turnLeft();
			move();
			while (beepersPresent()) {
				pickBeeper();
			}
			turnAround();
			move();
			move();
			while (beepersPresent()) {
				pickBeeper();
			}
			turnAround();
			move();
			turnRight();
		}
	}
}