原创 Broadcast Receiver監聽網絡狀態aa
在代碼中動態註冊，不需要在AndroidManifest.xml裏靜態註冊，靜態註冊在不打開App的情況下，有可以接收到廣播。 public class MainActivity extends Activity { privat
2020-06-06 16:00:03
原创 grammar1
“一般” 時態 一般過去時：謂語動詞 ＝ did（動詞的過去式） Last year Japan experienced 2,125 incidents of school violence... (2000, Reading Com
2019-06-29 23:01:08
原创 grammar2
（一）名詞、代詞作主語、賓語、表語 The process is natural selection. (2008, Use of English) But most law graduates never get a big-f
2019-06-29 23:01:08
原创 grammar5
第一章 並列句 （一）並列句的構成 The financial fallout has begun, and the political fallout may not be far behind. (2007, Reading Co
2019-06-29 23:01:08
原创 grammar4
一、 非謂語動詞作定語/狀語 非謂語動詞作定語 1. It also raises questions concerning "values." (2002, Translation) 2. A team of researchers w
2019-06-29 23:01:08
原创 grammar3
一 、限定詞修飾名詞 The roughly 20 million inhabitants of these nations looked hopefully to the future. (2007, Use of English)
2019-06-29 23:01:08
原创 ConcurrentHashMap的原理
以JDK1.8爲例： 在JDK8中進行了巨大改動，它摒棄了Segment（鎖段）的概念，它沿用了與它同時期的HashMap版本的思想，底層由Node數組+鏈表+紅黑樹的方式思想，爲了線程安全，採用了Synchronized和CAS樂觀鎖機
2019-03-03 15:34:39
原创 java中垃圾收集的方法有哪些?
標記-清除: 這是垃圾收集算法中最基礎的，根據名字就可以知道，它的思想就是標記哪些要被回收的對象，然後統一回收。這種方法很簡單，但是會有兩個主要問題：1.效率不高，標記和清除的效率都很低；2.會產生大量不連續的內存碎片，導致以後程序在分
2019-03-03 15:34:39
原创 26-50
1.This success, coupled with later research showing that memory itself is not genetically determined, led Ericsson to c
2018-09-26 06:30:06
1
原创 51-66
51. While warnings are often appropriate and necessary--the dangers of drug interactions, for example--and many are req
2018-09-26 06:30:06
3
原创 1-25
1.This success, coupled with later research showing that memory itself is not genetically determined, led Ericsson to c
2018-09-26 06:30:06
2
原创 C語言基礎及例程
輸入輸出函數 %d - int %ld – long int %hd – 短整型 %c -char %f - float %lf – double %u – 無符號數 %x – 十六進制輸出 int 或者long int 或者shor
2018-09-04 05:36:57
原创 The decision of the New York
Text 1 The decision of the New York Philharmonic to hire Alan Gilbert as its next music director has been the talk
2018-09-04 05:36:57
原创 Of all the changes
Text 1 ①Of all the changes that have taken place in English-language newspapers during the past quarter-century, p
2018-09-04 05:36:57
3