Java URI getProtocol()方法及示例

getProtocol() 函数是URL类的一部分。函数getProtocol()返回指定URL的协议。

函数签名

public String getProtocol()

语法

url.getProtocol()

参数 此函数不需要任何参数

返回类型 ：该函数返回 字符串 类型

下面的程序说明了getProtocol()函数的使用。

例1 :

// Java program to show the// use of the function getProtocol()  import java.net.*;  class GFG {    public static void main(String args[])    {        // url object        URL url = null;          try {            // create a URL            url = new URL("https:// www.geeksforgeeks.org");              // get the Protocol            String Protocol = url.getProtocol();              // display the URL            System.out.println("URL = " + url);              // display the Protocol            System.out.println("Protocol = " + Protocol);              // create a URL            url = new URL("http:// www.geeksforgeeks.org");              // get the Protocol            Protocol = url.getProtocol();              // display the URL            System.out.println("URL = " + url);              // display the Protocol            System.out.println("Protocol = " + Protocol);              // create a URL            url = new URL("ftp:// www.geeksforgeeks.org");              // get the Protocol            Protocol = url.getProtocol();              // display the URL            System.out.println("URL = " + url);              // display the Protocol            System.out.println("Protocol = " + Protocol);        }          // if any error occurs        catch (Exception e) {              // display the error            System.out.println(e);        }    }}

输出:

URL = https:// www.geeksforgeeks.orgProtocol = httpsURL = http:// www.geeksforgeeks.orgProtocol = httpURL = ftp:// www.geeksforgeeks.orgProtocol = ftp