JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How To Create URL Object by passing protocol, host, port and path in Java?


Description:

The URL class provides additional constructor for creating a URL object. This constructor is useful when you are working with URLs, such as HTTP URLs, that have host name, filename, port number, and reference components in the resource name portion of the URL. This constructor is useful when you do not have a String containing the complete URL specification, but you do know various components of the URL.


Code:
package com.myjava.url;

import java.net.MalformedURLException;
import java.net.URL;

public class MyUrlConstruct {

    public static void main(String a[]){
    
        try {
            String protocol = "http";
            String host = "www.java2novice.com";
            int port = 80;
            String path = "/java_thread_examples/";
            URL url = new URL(protocol, host, port, path);
            System.out.println(url.toString());
        } catch (MalformedURLException ex) {
            ex.printStackTrace();
        }
    }
}

Example Output

http://www.java2novice.com:80/java_thread_examples/

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Knowledge Centre
What is fail-fast in java?
A fail-fast system is nothing but immediately report any failure that is likely to lead to failure. When a problem occurs, a fail-fast system fails immediately. In Java, we can find this behavior with iterators. Incase, you have called iterator on a collection object, and another thread tries to modify the collection object, then concurrent modification exception will be thrown. This is called fail-fast.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected] or you can comment on the page.

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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