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: https://www.includehelp.com/java/listresourcebundle-getcontents-method-with-example.aspx