https://docs.oracle.com/javase/jp/22/docs/api/java.base/java/text/FieldPosition.html
FieldPosition (Java SE 22 & JDK 22)
declaration: module: java.base, package: java.text, class: FieldPosition
java sejdk
https://developers.google.com/j2objc/javadoc/jre/reference/java/text/FieldPosition.html
FieldPosition | J2ObjC | Google for Developers
googledevelopers