bundles/org.simantics.trend/example/org/simantics/trend/TestDecimalFormat.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.trend;\r
  13 \r
  14 import java.math.BigDecimal;\r
  15 import java.text.Format;\r
  16 import java.text.NumberFormat;\r
  17 \r
  18 import org.simantics.utils.format.FormattingUtils;\r
  19 import org.simantics.utils.format.ValueFormat;\r
  20 \r
  21 public class TestDecimalFormat {\r
  22 \r
  23         public static void main(String[] args) {\r
  24         \r
  25                 \r
  26                 NumberFormat f = ValueFormat.Scientific.format;\r
  27                 double x = 0.00001234567890;            \r
  28                 for (int i=-10; i<10; i++) {\r
  29                         System.out.println(f.format(x));\r
  30                         x *= 10.;\r
  31                 }\r
  32                 \r
  33                 x = 6.00;\r
  34                 for (int i=0; i<10; i++) {\r
  35                         x+= 0.0000000000001;\r
  36                         System.out.println(x);\r
  37                 }\r
  38 \r
  39                 BigDecimal dec = new BigDecimal(0);\r
  40                 BigDecimal augend = new BigDecimal(String.valueOf(0.2));\r
  41                 System.out.println(new BigDecimal(0.2));\r
  42                 System.out.println(new BigDecimal(String.valueOf(0.2)));\r
  43                 for (int i=0; i<1000000; i++) {\r
  44                         dec = dec.add(augend);\r
  45                         String s1 = dec.toString();\r
  46                         String s2 = Double.toString(dec.doubleValue());\r
  47                         if (!s1.equals(s2)) {\r
  48                                 System.out.println(s1 + " vs. " + s2);\r
  49                         }\r
  50                 }\r
  51 \r
  52                 Format format = FormattingUtils.significantDigitFormat(7);\r
  53 \r
  54                 System.out.println(format.format(123456789012345.1234));\r
  55                 System.out.println(format.format(12345678901.23451234));\r
  56                 System.out.println(format.format(1234567890.123451234));\r
  57                 System.out.println(format.format(123456789.0123451234));\r
  58                 System.out.println(format.format(12345678.90123451234));\r
  59                 System.out.println(format.format(10000123.4));\r
  60                 System.out.println(format.format(9999999.99));\r
  61                 System.out.println(format.format(9999999.9));\r
  62                 System.out.println(format.format(9999999));\r
  63                 System.out.println(format.format(1234567.890123451234));\r
  64                 System.out.println(format.format(123456.7890123451234));\r
  65                 System.out.println(format.format(12345.67890123451234));\r
  66                 System.out.println(format.format(1234.567890123451234));\r
  67                 System.out.println(format.format(123.4567890123451234));\r
  68                 System.out.println(format.format(12.34567890123451234));\r
  69                 System.out.println(format.format(1.234567890123451234));\r
  70                 System.out.println(format.format(0.1234567890123451234));\r
  71                 System.out.println(format.format(0.1111111));\r
  72                 System.out.println(format.format(0.1000001));\r
  73                 System.out.println(format.format(0.09999999999));\r
  74                 System.out.println(format.format(0.0999999999));\r
  75                 System.out.println(format.format(0.099999999));\r
  76                 System.out.println(format.format(0.09999999));\r
  77                 System.out.println(format.format(0.0999999));\r
  78                 System.out.println(format.format(0.01234567890123451234));\r
  79                 System.out.println(format.format(0.001234567890123451234));\r
  80                 System.out.println(format.format(0.0001234567890123451234));\r
  81                 System.out.println(format.format(0.00001234567890123451234));\r
  82                 System.out.println(format.format(0.000001234567890123451234));\r
  83                 System.out.println(format.format(0.0000001234567890123451234));\r
  84                 System.out.println(format.format(0.00000001234567890123451234));\r
  85                 System.out.println(format.format(0.000000001234567890123451234));\r
  86 \r
  87                 System.out.println(format.format(10));\r
  88                 System.out.println(format.format(20L));\r
  89                 System.out.println(format.format(-0));\r
  90                 System.out.println(format.format(-1L));\r
  91         \r
  92         }\r
  93         \r
  94 }\r