Strings.java Source code

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Here is the source code for Strings.java

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/*
 * LingPipe v. 3.9
 * Copyright (C) 2003-2010 Alias-i
 *
 * This program is licensed under the Alias-i Royalty Free License
 * Version 1 WITHOUT ANY WARRANTY, without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the Alias-i
 * Royalty Free License Version 1 for more details.
 *
 * You should have received a copy of the Alias-i Royalty Free License
 * Version 1 along with this program; if not, visit
 * http://alias-i.com/lingpipe/licenses/lingpipe-license-1.txt or contact
 * Alias-i, Inc. at 181 North 11th Street, Suite 401, Brooklyn, NY 11211,
 * +1 (718) 290-9170.
 */

//package com.aliasi.util;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import java.text.DecimalFormat;

/**
 * Static utility methods for processing strings, characters and
 * string buffers.
 *
 * @author  Bob Carpenter
 * @version 4.0.1
 * @since   LingPipe1.0
 * @see     java.lang.Character
 * @see     java.lang.String
 * @see     java.lang.StringBuilder
 */
public class Strings {

    /**
     * Return <code>true</code> if the two character sequences have
     * the same length and the same characters.  Recall that equality
     * is not refined in the specification of {@link CharSequence}, but
     * rather inherited from {@link Object#equals(Object)}.
     *
     * The related method {@link #hashCode(CharSequence)} returns
     * hash codes consistent with this notion of equality.
     *
     * @param cs1 First character sequence.
     * @param cs2 Second character sequence.
     * @return <code>true</code> if the character sequences yield
     * the same strings.
     */
    public static boolean equalCharSequence(CharSequence cs1, CharSequence cs2) {
        if (cs1 == cs2)
            return true;
        int len = cs1.length();
        if (len != cs2.length())
            return false;
        for (int i = 0; i < len; ++i)
            if (cs1.charAt(i) != cs2.charAt(i))
                return false;
        return true;
    }

}