1. WIKI教程
2. Java.util包
3. boolean equals(Object obj)

boolean equals(Object obj)

描述 (Description)

java.util.PropertyPermission.equals(Object obj)方法检查此对象是否等于obj。 即它与此对象具有相同的名称和操作

声明 (Declaration)

以下是java.util.PropertyPermission.equals()方法的声明

public boolean equals(Object obj)

参数 (Parameters)

obj - 要检查的对象。

返回值 (Return Value)

如果给定对象等于此对象（即同名和动作），则此方法返回true 。

异常 (Exception)

NA

例子 (Example)

以下示例显示了java.util.PropertyPermission.equals（Object）方法的用法。

package com.iowiki;
import java.util.PropertyPermission;
public class PropertyPermissionDemo {
   private static PropertyPermission permission;
   public static void main(String[] args) {
      // Build property permissions collection
      permission = new PropertyPermission("java.home.usr", "read");
      // Check file read permissions
      checkFileReadPermissions("java.home.usr");
      // Check file write permissions
      checkFileWritePermissions("java.home.usr");
   }
   private static void checkFileReadPermissions(String path) {
      // Check permissions are equal
      if(permission.equals(new PropertyPermission(path, "read"))) {
         System.out.println("Has permissions on "+path+" for read");
      }
   }
   private static void checkFileWritePermissions(String path) {
      // Check permissions are equal
      if(permission.equals(new PropertyPermission(path, "write"))) {
         System.out.println("Has permissions on "+path+" for write");
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 -

Has permissions on java.home.usr for read