2362N/A * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * A <tt>CharSequence</tt> is a readable sequence of <code>char</code> values. This 0N/A * interface provides uniform, read-only access to many different kinds of 0N/A * <code>char</code> sequences. 0N/A * A <code>char</code> value represents a character in the <i>Basic 0N/A * Multilingual Plane (BMP)</i> or a surrogate. Refer to <a 0N/A * <p> This interface does not refine the general contracts of the {@link 0N/A * java.lang.Object#equals(java.lang.Object) equals} and {@link 0N/A * java.lang.Object#hashCode() hashCode} methods. The result of comparing two 0N/A * objects that implement <tt>CharSequence</tt> is therefore, in general, 0N/A * undefined. Each object may be implemented by a different class, and there 0N/A * is no guarantee that each class will be capable of testing its instances 0N/A * for equality with those of the other. It is therefore inappropriate to use 0N/A * arbitrary <tt>CharSequence</tt> instances as elements in a set or as keys in 0N/A * @author Mike McCloskey 0N/A * Returns the length of this character sequence. The length is the number 0N/A * of 16-bit <code>char</code>s in the sequence.</p> 0N/A * @return the number of <code>char</code>s in this sequence 0N/A * Returns the <code>char</code> value at the specified index. An index ranges from zero 0N/A * to <tt>length() - 1</tt>. The first <code>char</code> value of the sequence is at 0N/A * index zero, the next at index one, and so on, as for array 0N/A * <p>If the <code>char</code> value specified by the index is a 0N/A * value is returned. 0N/A * @param index the index of the <code>char</code> value to be returned 0N/A * @return the specified <code>char</code> value 0N/A * @throws IndexOutOfBoundsException 0N/A * if the <tt>index</tt> argument is negative or not less than 0N/A * Returns a new <code>CharSequence</code> that is a subsequence of this sequence. 0N/A * The subsequence starts with the <code>char</code> value at the specified index and 0N/A * ends with the <code>char</code> value at index <tt>end - 1</tt>. The length 0N/A * (in <code>char</code>s) of the 0N/A * returned sequence is <tt>end - start</tt>, so if <tt>start == end</tt> 0N/A * then an empty sequence is returned. </p> 0N/A * @param start the start index, inclusive 0N/A * @param end the end index, exclusive 0N/A * @return the specified subsequence 0N/A * @throws IndexOutOfBoundsException 0N/A * if <tt>start</tt> or <tt>end</tt> are negative, 0N/A * if <tt>end</tt> is greater than <tt>length()</tt>, 0N/A * or if <tt>start</tt> is greater than <tt>end</tt> 0N/A * Returns a string containing the characters in this sequence in the same 0N/A * order as this sequence. The length of the string will be the length of 0N/A * this sequence. </p> 0N/A * @return a string consisting of exactly this sequence of characters