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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Java class can be private?
We can not declare top level class as private. Java allows only public and default modifier for top level classes in java. Inner classes can be private.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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