package onlyfun.caterpillar;
import java.util.*;
public class StringStack {
private LinkedList linkedList;
public StringStack() {
linkedList = new LinkedList();
}
public void push(String name) {
// ±N¤¸¯À¥[¤J¦ê¦C«eºÝ
linkedList.addFirst(name);
}
public String top() {
// ¨ú±o¦ê¦C²Ä¤@Ó¤¸¯À
return linkedList.getFirst();
}
public String pop() {
// ²¾¥X²Ä¤@Ó¤¸¯À
return linkedList.removeFirst();
}
public boolean isEmpty() {
// ¦ê¦C¬O§_¬°ªÅ
return linkedList.isEmpty();
}
}