Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
 * License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html
 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
 * specific language governing permissions and limitations under the
 * License.  When distributing the software, include this License Header
 * Notice in each file and include the License file at
 * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the
 * License Header, with the fields enclosed by brackets [] replaced by
 * your own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 *
 * Contributor(s):
 *
 * The Original Software is NetBeans. The Initial Developer of the Original
 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
 * Microsystems, Inc. All Rights Reserved.
 *
 * If you wish your version of this file to be governed by only the CDDL
 * or only the GPL Version 2, indicate your decision by adding
 * "[Contributor] elects to include this software in this distribution
 * under the [CDDL or GPL Version 2] license." If you do not indicate a
 * single choice of license, a recipient has the option to distribute
 * your version of this file under either the CDDL, the GPL Version 2 or
 * to extend the choice of license to its licensees as provided above.
 * However, if you add GPL Version 2 code and therefore, elected the GPL
 * Version 2 license, then the option applies only if the new code is
 * made subject to such option by the copyright holder.
 */

public class Main {
    /** Encodes datas using base64 encoding.
     * @param abyte0 data for encoding
     * @return encoded string
     */
    public static String encode(final byte abyte0[]) {
        final StringBuffer stringbuffer = new StringBuffer();
        for (int i = 0; i < abyte0.length; i += 3)
            stringbuffer.append(encodeBlock(abyte0, i));

        return stringbuffer.toString();
    }

    private static char[] encodeBlock(final byte abyte0[], final int i) {
        int j = 0;
        final int k = abyte0.length - i - 1;
        final int l = k < 2 ? k : 2;
        for (int i1 = 0; i1 <= l; i1++) {
            final byte byte0 = abyte0[i + i1];
            final int j1 = byte0 >= 0 ? ((int) (byte0)) : byte0 + 256;
            j += j1 << 8 * (2 - i1);
        }

        char ac[] = new char[4];
        for (int k1 = 0; k1 < 4; k1++) {
            final int l1 = j >>> 6 * (3 - k1) & 0x3f;
            ac[k1] = getChar(l1);
        }

        if (k < 1)
            ac[2] = '=';
        if (k < 2)
            ac[3] = '=';
        return ac;
    }

    private static char getChar(final int i) {
        if (i >= 0 && i <= 25)
            return (char) (65 + i);
        if (i >= 26 && i <= 51)
            return (char) (97 + (i - 26));
        if (i >= 52 && i <= 61)
            return (char) (48 + (i - 52));
        if (i == 62)
            return '+';
        return i != 63 ? '?' : '/';
    }
}