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JDK8/Java8源码在线阅读 / java / text / DontCareFieldPosition.java
/*
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package java.text;

/**
 * DontCareFieldPosition defines no-op FieldDelegate. Its
 * singleton is used for the format methods that don't take a
 * FieldPosition.
 */
class DontCareFieldPosition extends FieldPosition {
    // The singleton of DontCareFieldPosition.
    static final FieldPosition INSTANCE = new DontCareFieldPosition();

    private final Format.FieldDelegate noDelegate = new Format.FieldDelegate() {
        public void formatted(Format.Field attr, Object value, int start,
                              int end, StringBuffer buffer) {
        }
        public void formatted(int fieldID, Format.Field attr, Object value,

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