https://docs.oracle.com/en/java/javase/25/docs/api/java.desktop/javax/swing/plaf/basic/BasicSplitPaneUI.KeyboardDownRightHandler.html
BasicSplitPaneUI.KeyboardDownRightHandler (Java SE 25 & JDK 25)
declaration: module: java.desktop, package: javax.swing.plaf.basic, class: BasicSplitPaneUI, class: KeyboardDownRightHandler
java sejdk
https://docs.oracle.com/javase/jp/6/api/javax/swing/plaf/basic/BasicSplitPaneUI.KeyboardDownRightHandler.html
BasicSplitPaneUI.KeyboardDownRightHandler (Java Platform SE 6)
java platformse