116 lines
3.9 KiB
Java
116 lines
3.9 KiB
Java
/*
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* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4965770 4992540 5030716
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*/
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import java.nio.CharBuffer;
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import java.util.Formatter;
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import java.util.Formattable;
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import java.util.Locale;
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import static java.util.FormattableFlags.*;
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public class StockName implements Formattable {
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private String symbol, companyName, frenchCompanyName;
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public StockName(String symbol, String companyName,
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String frenchCompanyName)
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{
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this.symbol = symbol;
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this.companyName = companyName;
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this.frenchCompanyName = frenchCompanyName;
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}
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public void formatTo(Formatter fmt, int f, int width, int precision) {
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StringBuilder sb = new StringBuilder();
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// decide form of name
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String name = companyName;
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if (fmt.locale().equals(Locale.FRANCE))
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name = frenchCompanyName;
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boolean alternate = (f & ALTERNATE) == ALTERNATE;
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boolean usesymbol = alternate || (precision != -1 && precision < 10);
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String out = (usesymbol ? symbol : name);
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// apply precision
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if (precision == -1 || out.length() < precision) {
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// write it all
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sb.append(out);
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} else {
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sb.append(out.substring(0, precision - 1)).append('*');
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}
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// apply width and justification
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int len = sb.length();
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if (len < width)
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for (int i = 0; i < width - len; i++)
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if ((f & LEFT_JUSTIFY) == LEFT_JUSTIFY)
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sb.append(' ');
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else
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sb.insert(0, ' ');
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fmt.format(sb.toString());
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}
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public String toString() {
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return String.format("%s - %s", symbol, companyName);
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}
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public static void main(String [] args) {
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StockName sn = new StockName("HUGE", "Huge Fruit, Inc.",
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"Fruit Titanesque, Inc.");
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CharBuffer cb = CharBuffer.allocate(128);
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Formatter fmt = new Formatter(cb);
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fmt.format("%s", sn); // -> "Huge Fruit, Inc."
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test(cb, "Huge Fruit, Inc.");
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fmt.format("%s", sn.toString()); // -> "HUGE - Huge Fruit, Inc."
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test(cb, "HUGE - Huge Fruit, Inc.");
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fmt.format("%#s", sn); // -> "HUGE"
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test(cb, "HUGE");
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fmt.format("%-10.8s", sn); // -> "HUGE "
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test(cb, "HUGE ");
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fmt.format("%.12s", sn); // -> "Huge Fruit,*"
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test(cb, "Huge Fruit,*");
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fmt.format(Locale.FRANCE, "%25s", sn);
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// -> " Fruit Titanesque, Inc."
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test(cb, " Fruit Titanesque, Inc.");
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}
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private static void test(CharBuffer cb, String exp) {
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cb.limit(cb.position());
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cb.rewind();
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if (!cb.toString().equals(exp))
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throw new RuntimeException("expect: '" + exp + "'; got: '"
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+ cb.toString() + "'");
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cb.clear();
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}
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}
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