ex_queue.java

来自「JAVA_7 JAVA_7 JAVA_7 JAVA_7 JAVA_7 JAVA_」· Java 代码 · 共 17 行

package ch7;
import java.util.*;
public class Ex_Queue {
    public static void main(String[] args) {
        Queue q = new LinkedList();
        q.offer("First");
        q.offer("Second");
        q.offer("Third");
        Object o;
        System.out.println(q.toString());
        while((o = q.poll()) != null) {
            String s = (String)o;
            System.out.println(s);
        }
        System.out.println(q.toString());
    }
}