java@ LinkedList 学习

package abc.com;

import java.util.LinkedList;

public class TestLinkedList {

static void prt(Object o) {
System.out.print(o);
}
public static void main(String[] args) {
// TODO Auto-generated method stub

LinkedList<Character> books = new LinkedList<Character>();

books.offerFirst('a');
books.offerLast('b');
books.offerLast('c');
books.offerFirst('d');

for(int i=0;i<books.size();++i) {
prt(books.get(i));
}prt("\n");

prt(books.peekFirst() + "\n");

prt(books.peekLast() + "\n");

prt(books); books.pollFirst(); prt(books);

prt(books); books.pollLast(); prt(books);

}

}

运行结果:
dabc
d
c
[d, a, b, c]    [a, b, c]
[a, b, c]    [a, b]