SAMPLE ANSWERS FOR LAB 1

1.

private String getDirectory() {
	StringBuffer sb = new StringBuffer();
	for (int i = 0; i < numEntries; i++) 
		sb.append(directoryArray[i].getName() + " / " +
			directoryArray[i].getNumber() + "\n");
	return sb.toString();
}

2.

public String removeEntry(String name) {
	int namePosition = find(name);
	if (namePosition != -1) {
		String oldNumber = directoryArray[namePosition].getNumber();

		for (int index = namePosition+1; index < numEntries; index++)
			directoryArray[index-1] = directoryArray[index];
		// OR System.arraycopy(directoryArray, namePosition+1, directoryArray, namePosition, numEntries-(namePosition+1));

		directoryArray[numEntries-1] = null;
		numEntries--;
		modified = true;
		return oldNumber;
	}
	return null;        // if name not found
}