java7decimalformat/src/main/java/com/moparisthebest/text/OldDecimalFormat.java

66 lines
2.6 KiB
Java

/*
* 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.
*/
package com.moparisthebest.text;
import java.text.DecimalFormatSymbols;
/**
* This class can be used if you don't want to import two
* classes named the same, it simply extends
* com.moparisthebest.text.DecimalFormat
* and changes no behavior.
*/
public class OldDecimalFormat extends DecimalFormat {
public static void main(String[] args) {
final String num1 = args.length > 0 ? args[0] : "50";
final String num2 = args.length > 1 ? args[1] : "0.0259";
final int precision = Integer.parseInt(args.length > 2 ? args[2] : "2");
System.out.printf("%s * %s with precision of %d:%n", num1, num2, precision);
final java.math.BigDecimal bd = new java.math.BigDecimal(num1).multiply(new java.math.BigDecimal(num2));
System.out.println("java.math.BigDecimal: " + bd.setScale(precision, java.math.RoundingMode.HALF_EVEN).toString());
final double value = Double.parseDouble(num1) * Double.parseDouble(num2);
java.text.DecimalFormat df = new com.moparisthebest.text.DecimalFormat();
df.setMaximumFractionDigits(precision);
df.setMinimumFractionDigits(precision);
System.out.println("com.moparisthebest.text.DecimalFormat: " + df.format(value));
df = new java.text.DecimalFormat();
df.setMaximumFractionDigits(precision);
df.setMinimumFractionDigits(precision);
System.out.println("java.text.DecimalFormat: " + df.format(value));
}
public OldDecimalFormat() {
super();
}
public OldDecimalFormat(String pattern) {
super(pattern);
}
public OldDecimalFormat(String pattern, DecimalFormatSymbols symbols) {
super(pattern, symbols);
}
}