вроде уже победил, хотя если как-то красивее это сделать можно ?!
| Код |
import java.math.BigDecimal;
import java.text.ParseException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Test {
public static void main(String[] args) throws ParseException {
String[] pattern = new String[]{"*.49", "*.99", "*.*9", "*9.99", "*.97", "*0", "*90", "*50", "*900"};
BigDecimal[] num = new BigDecimal[]{new BigDecimal("123.12"), new BigDecimal("3.57"), new BigDecimal("555.98")};
for(BigDecimal n : num){
for(String p : pattern){
BigDecimal t = roundUpWithPattern(n, p);
System.out.println(p + "\t" + n.toPlainString() + "\t>> " + t.toPlainString());
}
}
}
public static BigDecimal roundUpWithPattern(BigDecimal source, String pattern){
String pTens = pattern.replaceAll("[0-9]", "0").replaceAll("\\*(?!.*\\*)","1").replaceAll("\\*","0");
BigDecimal target = addPattern(source, pattern);
if(target.compareTo(source) < 0){
target = addPattern(source.add(new BigDecimal(pTens)), pattern);
}
return target;
}
private static BigDecimal addPattern(BigDecimal source, String pattern){
if(pattern.indexOf(".") == -1){
pattern += ".00";
}
String tmpN = source.toPlainString();
String pPlaceHolder = pattern.replaceAll("\\*", "(\\\\d)").replaceAll("[0-9]", "\\\\d").replaceAll("\\.", "\\\\.");
Pattern pat = Pattern.compile(pPlaceHolder);
Matcher m = pat.matcher(tmpN);
if(m.find()){
StringBuffer mask = new StringBuffer();
int i = 1;
for(char c : pattern.toCharArray()){
if(c == '*'){
mask.append("$" + i);
i++;
}else{
mask.append(c);
}
}
String maskedMessage = m.replaceAll(mask.toString());
return new BigDecimal(maskedMessage);
}else{
BigDecimal target = new BigDecimal(pattern.replaceAll("\\*", "0"));
return target;
}
}
}
|
->
| Код |
*.49 123.12 >> 123.49
*.99 123.12 >> 123.99
*.*9 123.12 >> 123.19
*9.99 123.12 >> 129.99
*.97 123.12 >> 123.97
*0 123.12 >> 130.00
*90 123.12 >> 190.00
*50 123.12 >> 150.00
*900 123.12 >> 900.00
*.49 3.57 >> 4.49
*.99 3.57 >> 3.99
*.*9 3.57 >> 3.59
*9.99 3.57 >> 9.99
*.97 3.57 >> 3.97
*0 3.57 >> 10.00
*90 3.57 >> 90.00
*50 3.57 >> 50.00
*900 3.57 >> 900.00
*.49 555.98 >> 556.49
*.99 555.98 >> 555.99
*.*9 555.98 >> 555.99
*9.99 555.98 >> 559.99
*.97 555.98 >> 556.97
*0 555.98 >> 560.00
*90 555.98 >> 590.00
*50 555.98 >> 650.00
*900 555.98 >> 900.00
|
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