Java - URLConnection getIfModifiedSince() Method

Description

The Java URLConnection getIfModifiedSince() method returns the default value of a URLConnection's ifModifiedSince field.

Declaration

Following is the declaration for java.net.URLConnection.getIfModifiedSince() method

public long getIfModifiedSince()

Parameters

NA

Return Value

the value of a URLConnection's ifModifiedSince field.

Exception

NA

Example 1

The following example shows the usage of Java URLConnection getIfModifiedSince() method for a valid url with https protocol. In this example, we're creating an instance of URL class. Using url.openConnection() method, we're getting the URLConnection instance. Using getIfModifiedSince(), we're getting the default value of the ifModifiedSince field of URLConnection instance and printing the same. Then we've changed the value of ifModifiedSince field to 100 and printed the same again −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

public class UrlConnectionDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("https://www.tutorialspoint.com");
         URLConnection urlConnection = url.openConnection();

         System.out.println(urlConnection.getIfModifiedSince());
         urlConnection.setIfModifiedSince(100L);
         System.out.println(urlConnection.getIfModifiedSince());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

0
100

Example 2

The following example shows the usage of Java URLConnection getIfModifiedSince() method for a valid url with http protocol. In this example, we're creating an instance of URL class. Using url.openConnection() method, we're getting the URLConnection instance. Using getIfModifiedSince(), we're getting the default value of the ifModifiedSince field of URLConnection instance and printing the same. Then we've changed the value of ifModifiedSince field to 100 and printed the same again −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

public class UrlConnectionDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("http://www.tutorialspoint.com");
         URLConnection urlConnection = url.openConnection();

         System.out.println(urlConnection.getIfModifiedSince());
         urlConnection.setIfModifiedSince(100L);
         System.out.println(urlConnection.getIfModifiedSince());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

0
100

Example 3

The following example shows the usage of Java URLConnection getIfModifiedSince() method for a url of google with http protocol. In this example, we're creating an instance of URL class. Using url.openConnection() method, we're getting the URLConnection instance. Using getIfModifiedSince(), we're getting the default value of the ifModifiedSince field of URLConnection instance and printing the same. Then we've changed the value of ifModifiedSince field to 100 and printed the same again −

package com.tutorialspoint;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

public class UrlConnectionDemo {
   public static void main(String [] args) {
      try {
         URL url = new URL("http://www.google.com");
         URLConnection urlConnection = url.openConnection();

         System.out.println(urlConnection.getIfModifiedSince());
         urlConnection.setIfModifiedSince(100L);
         System.out.println(urlConnection.getIfModifiedSince());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Output

0
100