International Components for Unicode
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Character Functionalities Comparison Chart
This table lists down the differences between the character functions provided by ICU, ICU4J and JDK.
In the case where ICU and JDK supports the same functionality, ICU has a more updated implementation that is Unicode conformant.
Legend
Public in the current release
Not public or not available in the
current release
Return to the main comparison chart.
| Functions | ICU4C 3.8 | ICU4J 3.8 | JDK 6 |
|---|---|---|---|
| UnicodeData support | |||
| General category property support | unicode/uchar.h | com.ibm.icu.lang.UCharacter | java.lang.Character |
| Unicode code point numeric value representation | unicode/uchar.h | com.ibm.icu.lang.UCharacter | partial support, java.lang.Character does not have support for fractional and negative numeric values |
| Conversion from a digit to its Unicode code point representation | unicode/uchar.h | com.ibm.icu.lang.UCharacter | java.lang.Character |
| Case determination and conversion | unicode/uchar.h | com.ibm.icu.lang.UCharacter | java.lang.Character |
| Bidirection property | unicode/uchar.h | com.ibm.icu.lang.UCharacter | java.lang.Character |
| Mirror property | unicode/uchar.h | com.ibm.icu.lang.UCharacter | java.lang.Character |
| Normalization property | unicode/uchar.h | com.ibm.icu.lang.UCharacter | internal |
| Unicode name | unicode/uchar.h | com.ibm.icu.lang.UCharacter | not available |
| ISO 10646 comment | unicode/uchar.h | com.ibm.icu.lang.UCharacter | not available |
| East Asian width | unicode/uchar.h | com.ibm.icu.lang.UCharacter | not available |
| Unicode block property | unicode/uchar.h | com.ibm.icu.lang.UCharacter |
java.lang.Character |
| Unicode script property | unicode/uscript.h | com.ibm.icu.lang.UScript | not available |
| Derived Unicode character property support | unicode/uchar.h | com.ibm.icu.lang.UCharacter | not available |