PropertyPermission類newPermissionCollection()方法 (PropertyPermission Class newPermissionCollection() method)

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

  newPermissionCollection()方法在java.util包中可用。

• newPermissionCollection() method is used to create a new PermissionCollection object.

  newPermissionCollection()方法用于創建新的PermissionCollection對象。

• newPermissionCollection() 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.

  newPermissionCollection()方法是一個非靜態方法，只能通過類對象訪問，如果嘗試使用類名訪問該方法，則會收到錯誤消息。

• newPermissionCollection() method does not throw an exception at the time of creating an object.

  newPermissionCollection()方法在創建對象時不會引發異常。

Syntax:

句法：

public PermissionCollection newPermissionCollection();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is PermissionCollection, it returns new PermissionCollection object.

該方法的返回類型為PermissionCollection ，它返回新的PermissionCollection對象。

Example:

例：

// Java program to demonstrate the example // of newPermissionCollection() method of // PropertyPermissionimport java.util.*; import java.security.*;public class NewPermissionCollectionOfPropertyPermission {public static void main(String arg[]) {// Instantiates two PropertyPermission objectPropertyPermission prop_perm1 = new PropertyPermission("os.version", "write");PropertyPermission prop_perm2 = new PropertyPermission("os.name", "read");// By using newPermissionCollection() method// is to create a new permission collection// and add permissionsPermissionCollection pc = prop_perm1.newPermissionCollection();pc.add(prop_perm1);pc.add(prop_perm2);// By using implies() method isto// check whether this PermissionCollection// holds the permission write or notboolean status = pc.implies(prop_perm1);// Display statusSystem.out.print("pc.implies(prop_perm1): ");System.out.println(status);} }

Output

輸出量

pc.implies(prop_perm1): true

翻譯自: https://www.includehelp.com/java/propertypermission-newpermissioncollection-method-with-example.aspx

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