Java Example - Get remote file size

The following example demonstrates how to get the size of a remote file:

/*
 author by runoob.com
 Main.java
 */import java.net.URL;import java.net.URLConnection;public class Main {
   public static void main(String[] argv) 
   throws Exception {
      int size;
      URL url = new URL("http://www.w3cschool.cc/wp-content/themes/w3cschool.cc/assets/img/newlogo.png");
      URLConnection conn = url.openConnection();
      size = conn.getContentLength();
      if (size < 0)
      System.out.println("无法获取文件大小。");
      else
      System.out.println("文件大小为：" +
      + size + " bytes");
      conn.getInputStream().close();
   }}

The output result of running the above code is:

文件大小为：4261 bytes

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