无法实例化类型HttpConnection

Question

下面是我的android java代码的一部分，我得到了错误"Cannot instantiate the type HttpConnection“

import org.apache.http.HttpConnection;
import android.app.Activity;
import android.app.AlertDialog;


public class MainActivity_test extends Activity 
{
   int resultcode,flag;    
   public static final int DIALOG_LOADING_PROGRESS = 0;
   HttpConnection con;
con = new HttpConnection();
.
.
.
}

Answer 1

HttpConnection是一个接口，因此您不能从它构造对象。

Answer 2

org.apache.http.HttpConnection是一个接口，所以你不能在它之外创建对象。请参阅API