class Person
{
public string Name = string.Empty;
public string Department = string.Empty;
public Person (string strName, string strDep)
{
Name=strName;
Department=strDep;
}
public string ShowDetail()
{
return string.Format("Name:{0}, Dep:{1}", Name, Department);
}
}
Person p1 = new Person("paladin", "BPO");
Person p2 = new Person("hugo", "BPO");
Person p3 = new Person("ken", "BPO");
Person p4 = new Person("keen", "BPO");
Person p5 = new Person("polly", "BPO");
Person p6 = new Person("panda", "BPO");
Person p7 = new Person("lillian", "BPO");
Person p8 = new Person("gemma", "BPO");
Person p9 = new Person("hana", "BPO");
Person[] arrayOffice = { p1, p2, p3, p4, p5, p6, p7, p8, p9 };
Array.Sort(arrayOffice);
class Person :IComparable //宣告使用了 IComparable 介面
{
// 原先的程式碼
// XXXXXXXXXXXXX
// XXXXXXXXXXXXX
//實做 IComparable 介面
int IComparable.CompareTo(object obj)
{
Person p2 = obj as Person;
if (p2 == null) throw new ArgumentException("Object is not a Person!");
int iNameResult = this.Name.CompareTo(p2.Name);
if (iNameResult == 0)
{
int iDepResult = this.Department.CompareTo(p2.Department);
return iDepResult;
}
else
{
return iNameResult;
}
}
string strInput = "paladin,hugo,ken,keen,polly,panda,lillian,gemma,hana";
string[] strArray = strInput.Split(',');
foreach (string s in strArray)
{
Console.WriteLine(s);
}
int iLocation=Array.BinarySearch(strArray, "panda");
Console.WriteLine("Index of 'panda' is :"+iLocation.ToString());
Console.Read();
string strInput = "paladin,hugo,ken,keen,polly,panda,lillian,gemma,hana";
string[] strArray = strInput.Split(',');
Array.Sort(strArray);
foreach (string s in strArray)
{
Console.WriteLine(s);
}
int iLocation=Array.BinarySearch(strArray, "panda");
Console.WriteLine("Index of 'panda' is :"+iLocation.ToString());
Console.Read();
| 變數名稱 | 變數值 |
| CLASSPATH | C:\Program Files\Java\jdk1.6.0_16\bin |
| CATALINA_HOME | C:\Tomcat |
| JAVA_HOME | C:\Program Files\Java\jdk1.6.0_16 |
| 資料夾 | 說明 |
| bin | 程式指令(啟動與停止) |
| common | 執行所需jar函式庫 |
| conf | 設定檔 |
| logs | 日誌檔 |
| webapps | 存放網頁應用程式目錄 |
class Person
{
public string Name = string.Empty;
public string ID = string.Empty;
public Person(string _name,string _id)
{
Name = _name;
ID = _id;
}
public override bool Equals(object obj)
{
Person p = (Person)obj;
return p.Name == this.Name && p.ID == this.ID;
}
}
class Person
public Person(string _name,string _id)
}
Person 有兩個公開屬性，分別是 Name 與 ID。
如果程式如下：
Person p1=New Person("paladin","01");
Person p2=New Person("paladin","01");
這 p1 與 p2 ，雖然所傳入的值，都是 Name="paladin" ,ID="01"，
但他們彼此卻是不相同的，可以透過以下的 Equals( )來知道。
p1.Equals(p2)
他會回傳 False。
然而，今天如果我們想要重新定義，只要是 Name 與 ID 相同，就要視
兩個實體為相同，可以嗎？
可以的，此時，可以透過覆寫 Equals( ) 來達成。
在 Person 類別裡，針對這個類別的 Equals( ) 方法進行覆寫，只要
Name 與 ID 相同，就視為相同的物件。
將 覆寫的程式描述如下：
public override bool Equals(object obj)
{
Person p = (Person)obj;
return p.Name == this.Name && p.ID == this.ID;
}
如此，執行 p1.Equals(p2) 時，
則會去比較 p2.Name 是否等於 p1.Name 且 p2.ID 是否等於 p1.ID ，
然後以此來回傳 Equals( ) 的值。
完整的 Person 的定義如下：
class Person
{
public string Name = string.Empty;
public string ID = string.Empty;
public Person(string _name,string _id)
{
Name = _name;
ID = _id;
}
public override bool Equals(object obj)
{
Person p = (Person)obj;
return p.Name == this.Name && p.ID == this.ID;
}
}
而在實際比較時，就可以發現，此時 p1.Equals(p2) 就會回傳 True 了
static void Main(string[] args)
{
Person p1 = new Person("paladin", "01");
Person p2 = new Person("paladin", "01");
Console.WriteLine(string.Format("p1 is the same with p2 ? {0}", p1.Equals(p2) ? "True" : "False"));
Console.ReadKey();
}
