java uuid靜態(tài)方法

UUID類compareTo()方法 (UUID Class compareTo() method)

• compareTo() method is available in java.util package.

  compareTo()方法在java.util包中可用。

• compareTo() method is used to compare two UUID objects or in other words, it is used to compare this UUID with the given object (ob).

  compareTo()方法用于比較兩個(gè)UUID對象，換句話說，它用于將該UUID與給定對象(ob)比較。

• compareTo() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  compareTo()方法是一種非靜態(tài)方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會(huì)收到錯(cuò)誤消息。

• compareTo() method does not throw an exception at the time of comparing two objects.

  比較兩個(gè)對象時(shí)， compareTo()方法不會(huì)引發(fā)異常。

Syntax:

句法：

public int compareTo(UUID ob);

Parameter(s):

參數(shù)：

• UUID ob – represents the UUID object to be compared with this UUID.

  UUID ob –表示要與此UUID比較的UUID對象。

Return value:

返回值：

The return type of the method is int, it returns any one of the given three values [0,1 and -1],

方法的返回類型為int ，它返回給定的三個(gè)值[0,1和-1]中的任何一個(gè)，

• When (This UUID) < (UUID ob), it returns -1.

  當(dāng)(This UUID)<(UUID ob)時(shí)，它返回-1。

• When (This UUID) == (UUID ob), it returns 0.

  當(dāng)(This UUID)==(UUID ob)時(shí)，它返回0。

• When (This UUID) > (UUID ob), it returns 1.

  當(dāng)(此UUID)>(UUID ob)時(shí)，它將返回1。

Example:

例：

// Java program to demonstrate the example // of int compareTo(UUID ob) method of UUID import java.util.*;public class CompareToOfUUID {public static void main(String[] args) {// Instantiate UUID UUID uuid1 = UUID.fromString("46400000-8cc0-11bd-b43e-10d46e4ef14d");UUID uuid2 = UUID.fromString("56500000-8cd0-10bd-b65e-10d46e4ef14d");// By using compareTo() method is// to compare this object with the given objectint result = uuid1.compareTo(uuid2);System.out.println("uuid1.compareTo(uuid2): " + result);} }

Output

輸出量

uuid1.compareTo(uuid2): -1

翻譯自: https://www.includehelp.com/java/uuid-compareto-method-with-example.aspx

java uuid靜態(tài)方法

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