[J2SE] 請問ArrayDeque要怎麼宣告?
import java.util.*;
public class ArrayDequeDemo{
public static void main(String[] args){
ArrayDeque<String> deque=new ArrayDeque<String>(5);
}
}
我照API這樣宣告
它一直給我錯誤訊息:
cannot access ArrayDeque
可以請各位大大教我怎樣才不會錯嗎?
小弟在這邊先謝謝各位大大
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