Java 中的 URL getProtocol()方法，带示例

原文:https://www . geesforgeks . org/URL-get protocol-method-in-Java-with-examples/

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

功能签名

public String getProtocol()

语法

url.getProtocol()

参数该功能不需要任何参数

返回类型: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);
        }
    }
}

Output:

URL = https:// www.geeksforgeeks.org
Protocol = https
URL = http:// www.geeksforgeeks.org
Protocol = http
URL = ftp:// www.geeksforgeeks.org
Protocol = ftp

版权属于：月萌API www.moonapi.com，转载请注明出处

本文链接：https://moonapi.com/news/26029.html