Java - URLConnection setDefaultUseCaches(boolean defaultusecaches)

Description

The Java URLConnection setDefaultUseCaches(boolean defaultusecaches) method sets the default value of the useCaches field to the specified value. This default value can be over-ridden per protocol using setDefaultUseCaches(String,boolean).

Declaration

Following is the declaration for java.net.URLConnection.setDefaultUseCaches(boolean defaultusecaches) method

public void setDefaultUseCaches(boolean defaultusecaches)

Parameters

defaultusecaches − the new value.

Return Value

NA

Exception

NA

Example 1

The following example shows the usage of Java URLConnection setDefaultUseCaches() 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 getDefaultUseCaches(), we're getting the default value of the useCaches flag of URLConnection instance and printing the same. Then using setDefaultUseCaches() method we've setDefaultUseCaches() changed the value of useCaches flag to false 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.getDefaultUseCaches());
         urlConnection.setDefaultUseCaches(false);
         System.out.println(urlConnection.getDefaultUseCaches());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

true
false

Example 2

The following example shows the usage of Java URLConnection getDefaultUseCaches() 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 getDefaultUseCaches(), we're getting the default value of the useCaches flag of URLConnection instance and printing the same. Then using setDefaultUseCaches() method we've setDefaultUseCaches() changed the value of useCaches flag to false 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.getDefaultUseCaches());
         urlConnection.setDefaultUseCaches(false);
         System.out.println(urlConnection.getDefaultUseCaches());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

true
false

Example 3

The following example shows the usage of Java URLConnection getDefaultUseCaches() 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 getDefaultUseCaches(), we're getting the default value of the useCaches flag of URLConnection instance and printing the same. Then using setDefaultUseCaches() method we've setDefaultUseCaches() changed the value of useCaches flag to false 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.getDefaultUseCaches());
         urlConnection.setDefaultUseCaches(false);
         System.out.println(urlConnection.getDefaultUseCaches());
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
}

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

Output

true
false