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（1） 實現一個Point類，該類包含表示坐標的兩個int型變量x、y，構造方法Point()和Point(int xx, int yy),返回x值和y值的int getX()和int getY()方法，計算兩點間距離的double distance(Point)方法。其中計算平方根用Math.sqrt()方法。
（2） 實現一個Circle類，該類包含表示圓心的Point型變量center，表示半徑的int radius變量，以及構造方法Circle()、Circle(int xx,int yy,int r)、Circle(Point c,int r)，返回周長和面積的int perimeter()、double area()方法，返回兩個圓是否為同一個圓（返回0）、同心圓（返回1）、相交的圓（返回2）、分離的圓（返回3）、包含的圓（返回4）等關系的int relation(Circle c)等方法。PI值可以用Math.PI常量。
（3） 實現測試上述兩個類的ClassTest類。該類在main方法中分別創建若干個Point對象和Circle對象，并調用相關方法，輸出方法的返回值，驗證其正確性。
（4） 將Point類、Circle類和主類的包名分別調整為p1、p2、p3，并重新運行，驗證是否運行正確。
標簽：
Point
上傳時間：
2014-11-25
上傳用戶：cylnpy
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an approach for capturing similarity between words that was concerned with the syntactic similarity of two strings. Today we are back to discuss another approach that is more concerned with the meaning of words. Semantic similarity is a confidence score that reflects the semantic relation between the meanings of two sentences. It is difficult to gain a high accuracy score because the exact semantic meanings are completely understood only in a particular context.
標簽：
similarity
capturing
concerned
syntactic
上傳時間：
2014-01-05
上傳用戶：wmwai1314
-
In the previous article, we presented an approach for capturing similarity between words that was concerned with the syntactic similarity of two strings. Today we are back to discuss another approach that is more concerned with the meaning of words. Semantic similarity is a confidence score that reflects the semantic relation between the meanings of two sentences. It is difficult to gain a high accuracy score because the exact semantic meanings are completely understood only in a particular context.
標簽：
similarity
presented
capturing
previous
上傳時間：
2013-12-13
上傳用戶：wcl168881111111
-
THE CONTENTS OF THIS DOCUMENT ARE PROVIDED "AS IS". EXCEPT AS REQUIRED BY
APPLICABLE LAW, NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE, ARE MADE IN relation TO THE ACCURACY,
RELIABILITY OR CONTENTS OF THIS DOCUMENT. NOKIA RESERVES THE RIGHT TO
REVISE THIS DOCUMENT OR WITHDRAW IT AT ANY TIME WITHOUT PRIOR NOTICE.
標簽：
APPLICABLE
CONTENTS
DOCUMENT
PROVIDED
上傳時間：
2013-12-06
上傳用戶：rishian
-
this is a document about radio frequency identification RFID, this was a project ,i have done last year ,actually this technology is a very inpotrtant one due to its relation with newest technologies , like GPS , or the miniturization of integrated circuits ,and that is described in chapter 3 . chapter 1 gives an introduction of the technology RFID , chapter 2 gives a discussion of a library using RFID , and chapter 3 is about the future of RFID , and finally the conclusion .
標簽：
this
identification
frequency
document
上傳時間：
2014-01-10
上傳用戶：gtzj
-
data are often used interchangeably, they are actually very different. Data is a set of unrelated information, and as such is of no use until it is properly evaluated. Upon evaluation, once there is some significant relation between data, and they show some relevance, then they are converted into information. Now this same data can be used for different purposes. Thus, till the data convey some information, t
標簽：
interchangeably
are
different
unrelated
上傳時間：
2017-09-26
上傳用戶：cxl274287265
-
This book provides an overview of recent innovations and achievements in the broad areas of cyber-physical systems (CPS), including architecture, networking, systems, applications, security, and privacy. The book discusses various new CPS technologies from diverse aspects to enable higher level of innovation towards intelligent life. The book provides insight to the future integration, coordination and interaction between the physical world, the information world, and human beings. The book features contributions from renowned researchers and engineers, who discuss key issues from various perspectives, presenting opinions and recent CPS-related achievements.Investigates how to advance the development of cyber-physical systems
Provides a joint consideration of other newly emerged technologies and concepts in relation to CPS like cloud computing, big data, fog computing, and crowd sourcing
Includes topics related to CPS such as architecture, system, networking, application, algorithm, security and privacy
標簽：
Cyber-Physical
Systems
上傳時間：
2019-04-21
上傳用戶：danyun
-
The term economics is generally understood to mean sound
management. This is associated with openness, good faith, accurate
figures and integrity in company accounts, with transparency ensured
through satisfactory standards of good practice in relation to investors
and the clients who have placed their trust in an organization’s
managers.
標簽：
Communication
Networks
Economy
上傳時間：
2020-05-26
上傳用戶：shancjb
-
Do you have a mobile phone? We think you probably do, one way or another. We
would also guess that you might use it for many diff erent things in the course of your
everyday life—as a telephone certainly, but also as an address book, as a clock or
watch, as a camera, or now as a connection to your computer, email and the internet.
Th ere will be a range of people you use it to contact (or not), and various strategies
you use to take calls—or send texts, or take photos, or receive emails, or search online
(or not, in diff erent situations). Th ere are also likely to be a range of social relation-
ships in your life that your mobile phone helps to maintain—or disrupts, or inter-
venes in, or makes possible, or complicates, or just plain helps to handle.
標簽：
Communications
Introduction
Mobile
Media
New
An
to
上傳時間：
2020-05-30
上傳用戶：shancjb
