return bind 式 という書き方ができるのか import javafx.ui.*; public class Tesuto2 { attribute x:String; attribute y:String; operation goukei():String ; } operation Tesuto2.goukei():String { return bind "{x}と{y}."; } var tes = Tesuto2 {x:"…

import javafx.ui.*; public class Tesuto2 { attribute x:String; attribute y:String; attribute goukei: String; } var tes = Tesuto2 {x:"山" y: "川"}; var goukei=bind "{tes.x}と{tes.y}"; // *A var win = Frame { title: bind " JavaFX" width: 200…