https://docs.oracle.com/javase/jp/18/docs/api/java.desktop/javax/swing/text/StyledEditorKit.ItalicAction.html
StyledEditorKit.ItalicAction (Java SE 18 & JDK 18)
declaration: module: java.desktop, package: javax.swing.text, class: StyledEditorKit, class: ItalicAction
java sejdk