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Una librería para firma digital

There is a newer version: 0.1.8

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package io.rubrica.validaciones;

import java.io.File;

/**
 *
 * @author mfernandez
 */
public class Extensiones {
	public final static String ods = "ods";
	public final static String odt = "odt";
	public final static String pdf = "pdf";
	public final static String txt = "txt";
	public final static String xls = "xls";
	public final static String xml = "xml";

	/*
	 * Get the extension of a file.
	 */
	public static String getExtension(File f) {
		String ext = null;
		String s = f.getName();
		int i = s.lastIndexOf('.');

		if (i > 0 && i < s.length() - 1) {
			ext = s.substring(i + 1).toLowerCase();
		}
		return ext;
	}
}