ListResourceBundle类的getContents()方法 (ListResourceBundle Class getContents() method)

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

  getContents()方法在java.util包中可用。

• getContents() method is used to get the contents into the form of an Object array (Object [][]) and every item is pairs of objects in an Object[][] where first indices represent the key element and the second indices represent the value element linked with the key in an object array.

  getContents()方法用于将内容转换为Object数组(Object [] [])的形式，每个项目都是Object [] []中的成对对象，其中第一个索引代表键元素，第二个索引代表与对象数组中的键链接的value元素。

• getContents() 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.

  getContents()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• getContents() method does not throw an exception at the time of getting contents.

  getContents()方法在获取内容时不会引发异常。

Syntax:

句法：

protected abstract Object[][] getContents();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is Object [] [], it returns 2D object array that contains two objects in the form of key-value pairs.

该方法的返回类型为Object [] [] ，它返回2D对象数组，该数组包含两个键值对形式的对象。

Example:

例：

// Java program to demonstrate the example // of Object[][] getContents()  method of  // ListResourceBundle import java.util.*;// Instantiates a class that extends// ListResourceBundle class GetContents extends ListResourceBundle {
    // By using getContent() method is to // get the contents in the form of  // 2D objects protected Object[][] getContents() {
     return new Object[][] {
      {
       "10",    "C"   }, {
       "20",    "C++"   }, {
       "30",    "JAVA"   }, {
       "40",    "SFDC"   }, {
       "50",    "PHP"   }  }; }}public class Main {
    public static void main(String[] args) {
     // Instantiates an object of  // GetContents  GetContents get_c = new GetContents();  // Display the value for the   // given key element  System.out.println("get_c.getString(40): " + get_c.getString("40")); }}

Output

输出量

get_c.getString(40): SFDC

翻译自: