Java 中 ExternalForm()方法的 URL，带示例
原文:https://www . geesforgeks . org/URL-to externalform-in-Java-method-with-examples/
toExternalForm() 函数是 URL 类的一部分。函数的作用是:返回指定网址的字符串表示形式。该字符串是通过为此对象调用流协议处理程序的 toExternalForm()函数创建的。
功能签名:
public String toExternalForm()
语法:
url.toExternalForm()
参数:该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 toExternalForm()函数的使用:
*示例 1* :给定一个网址，我们将对该网址进行字符串表示
// Java program to show the
// use of the function toExternalForm()
import java.net.*;
class Solution {
public static void main(String args[])
{
// url object
URL url = null;
try {
// create a URL
url = new URL("https:// www.geeksforgeeks.org");
// get the ExternalForm
String _ExternalForm = url.toExternalForm();
// display the URL
System.out.println("URL = " + url);
// display the ExternalForm
System.out.println(" String representation= "
+ _ExternalForm);
}
// if any error occurs
catch (Exception e) {
// display the error
System.out.println(e);
}
}
}
**Output:
URL = https:// www.geeksforgeeks.org
String representation= https:// www.geeksforgeeks.org
```**
****例 2:****
```java
// Java program to show the
// use of the function toExternalForm()
import java.net.*;
class Solution {
public static void main(String args[])
{
// url object
URL url = null;
try {
// create a URL
url= new URL("https:// www.geeksforgeeks.org#Arnab_Kundu");
// get the ExternalForm
String _ExternalForm = url.toExternalForm();
// display the URL
System.out.println("URL = " + url);
// display the ExternalForm
System.out.println(" String representation= "
+ _ExternalForm);
}
// if any error occurs
catch (Exception e) {
// display the error
System.out.println(e);
}
}
}
**Output:
```java URL = https:// www.geeksforgeeks.org#Arnab_Kundu String representation= https:// www.geeksforgeeks.org#Arnab_Kundu
```**
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