| Class | Description |
|---|---|
| AnyIntegerUtil |
Auto convert string in `[-+]?[-_0-9,]+` to number
|
| AverageDecimal | |
| BalanceDecimal |
average the number with the count
|
| BigDecimalUtil |
Null-friendly BigDecimal utility
|
| BigDecimalUtil.W |
null treated as zero, not thread safe.
|
| ComparableUtil |
the comparator without compare null
|
| RatioNumber |
Proportional number, express the two units of proportionality,
and the number of large and small items carried and borrowed ratio.
|
| RatioNumber.Ratio |
ration of `one` and `use`, How many `one` equals how many `use`
|
| Enum | Description |
|---|---|
| RatioNumber.Grade |
up/down relationship between `one` and `use`
|
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