Main.java Source code

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//package com.java2s;
/*
 * Copyright (c) 2002, 2010, 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.
 */

import javax.swing.*;

import java.util.*;

public class Main {
    /**
     * Returns an integer from the defaults table. If <code>key</code> does
     * not map to a valid <code>Integer</code>, or can not be convered from
     * a <code>String</code> to an integer, the value 0 is returned.
     *
     * @param key  an <code>Object</code> specifying the int.
     * @return the int
     */
    public static int getUIDefaultsInt(Object key) {
        return getUIDefaultsInt(key, 0);
    }

    /**
     * Returns an integer from the defaults table that is appropriate
     * for the given locale. If <code>key</code> does not map to a valid
     * <code>Integer</code>, or can not be convered from a <code>String</code>
     * to an integer, the value 0 is returned.
     *
     * @param key  an <code>Object</code> specifying the int. Returned value
     *             is 0 if <code>key</code> is not available,
     * @param l the <code>Locale</code> for which the int is desired
     * @return the int
     */
    public static int getUIDefaultsInt(Object key, Locale l) {
        return getUIDefaultsInt(key, l, 0);
    }

    /**
     * Returns an integer from the defaults table. If <code>key</code> does
     * not map to a valid <code>Integer</code>, or can not be convered from
     * a <code>String</code> to an integer, <code>default</code> is
     * returned.
     *
     * @param key  an <code>Object</code> specifying the int. Returned value
     *             is 0 if <code>key</code> is not available,
     * @param defaultValue Returned value if <code>key</code> is not available,
     *                     or is not an Integer
     * @return the int
     */
    public static int getUIDefaultsInt(Object key, int defaultValue) {
        return getUIDefaultsInt(key, null, defaultValue);
    }

    /**
     * Returns an integer from the defaults table that is appropriate
     * for the given locale. If <code>key</code> does not map to a valid
     * <code>Integer</code>, or can not be convered from a <code>String</code>
     * to an integer, <code>default</code> is returned.
     *
     * @param key  an <code>Object</code> specifying the int. Returned value
     *             is 0 if <code>key</code> is not available,
     * @param l the <code>Locale</code> for which the int is desired
     * @param defaultValue Returned value if <code>key</code> is not available,
     *                     or is not an Integer
     * @return the int
     */
    public static int getUIDefaultsInt(Object key, Locale l, int defaultValue) {
        Object value = UIManager.get(key, l);

        if (value instanceof Integer) {
            return ((Integer) value).intValue();
        }
        if (value instanceof String) {
            try {
                return Integer.parseInt((String) value);
            } catch (NumberFormatException nfe) {
            }
        }
        return defaultValue;
    }
}