URLPermission URLPermission(String) in Java

URLPermission(String): This method is available in the java.net.URLPermission class of Java.

Syntax:

java.net.URLPermission.URLPermission(String url)

This method takes one argument. This method creates a URLPermission with the given url string and unrestricted methods and requests headers by invoking the two-argument constructor as follows: URLPermission(url, "*:*")

Parameters: Two parameters are required for this method.

url: the url string.

Throws:

1. IllegalArgumentException - if url does not result in a valid URI

Approach 1: When no exception

Java

package com.URLPermission;

import java.net.URLPermission;

public class URLPermission1 {
    public static void main(String[] args) {

        String url = "https://beingcodeexpert.blogspot.com/";
        URLPermission urlPermission = new URLPermission(url);

        System.out.println(urlPermission);
    }
}

Output:

("java.net.URLPermission" "https://beingcodeexpert.blogspot.com/" "*:*")

Approach 2: IllegalArgumentException 

Java

package com.URLPermission;

import java.net.URLPermission;

public class URLPermission1 {
    public static void main(String[] args) {

        String url = "https:\\beingcodeexpert.blogspot.com/";
        URLPermission urlPermission = new URLPermission(url);

        System.out.println(urlPermission);
    }
}

Output:

Exception in thread "main" java.lang.IllegalArgumentException: Invalid URL string: "https:\beingcodeexpert.blogspot.com/"
	at java.base/java.net.URLPermission.parseURI(URLPermission.java:479)
	at java.base/java.net.URLPermission.init(URLPermission.java:202)
	at java.base/java.net.URLPermission.<init>(URLPermission.java:182)
	at java.base/java.net.URLPermission.<init>(URLPermission.java:239)
	at com.URLPermission.URLPermission1.main(URLPermission1.java:9)

Some other methods of URLPermission class

URLPermission(String): This method creates a URLPermission with the given url string and unrestricted methods and requests headers by invoking the two-argument constructor as follows: URLPermission(url, "*:*")

URLPermission(String, String): This method creates a new URL permission from a url string and permits the given request methods and user-settable request headers.

equals(Object): his method returns true if, this.getActions().equals(p.getActions())and p's url equals this's url. Returns false otherwise.

getActions(): This method returns the normalized method list and requests a header list, in the form: "method-names: header-names".

hashCode(): This method returns a hashcode calculated from the hashcode of the actions String and the url string.

implies(Permission): This method checks if this URLPermission implies some of the permissions.