Utility to convert File to URL.

       
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import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

public class FileMonitor {

  /**
   * Utility to convert {@link File} to {@link URL}.
   * 
   * @param filePath the path of the file
   * @return the {@link URL} representation of the file.
   * @throws MalformedURLException
   * @throws IllegalArgumentException if the file path is null, empty or blank
   */
  public static URL convertFileToURL( String filePath ) throws MalformedURLException {
     
      File file = new File(filePath.trim());
      return file.toURI().toURL();
  }
}

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Utility to convert File to URL. : URI « Network Protocol « Java

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