ListView_getItems_remove1
  • view1.getItems().remove(2,4);
    btn1.setVisible(false);
 
 
Code:

package javafxtemplate1;

import java.sql.SQLException;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.collections.FXCollections;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ListView;
import javafx.scene.control.Label;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.control.Tooltip;

import javafx.stage.Stage;

public class JavaFXTemplate1 extends Application {
@Override
public void start(Stage primaryStage) {
Group groot = new Group();
String str1 = "Selected ";
//
ObservableList<String> oString1 = FXCollections.<String>observableArrayList(null,"JAN", "FEB", "MAR");
ListView<String> lview1 = new ListView(oString1);
//lview1.getItems().addAll(null,"Jan", "FEB", "MAR");
lview1.setLayoutX(100);lview1.setLayoutY(10);
Button btn1 = new Button("list addAll");
Button btn2 = new Button("Exit Platform");
Button btn3 = new Button("Remove Items");
btn3.setVisible(false);//true
btn1.setLayoutX(10);btn1.setLayoutY(10);
btn2.setLayoutX(10);btn2.setLayoutY(60);
btn3.setLayoutX(10);btn3.setLayoutY(90);
Label label1 = new Label("add/Remove");
label1.setLayoutX(10);label1.setLayoutY(40);
//Class Implementing Event handler
btn2.setOnAction(new DemoEventHandler1(){ });
// adding more element
btn1.setOnAction((ActionEvent e) -> {
lview1.getItems().addAll("APR", "MAY");
btn3.setVisible(true);
});
//removing element 2 to 4
btn3.setOnAction((ActionEvent e) -> {
lview1.getItems().remove(2,4);
btn1.setVisible(false);
});
//
lview1.setTooltip(new Tooltip("Selet Month"));
lview1.getSelectionModel().selectFirst();
//
lview1.getSelectionModel().selectedIndexProperty().addListener(new
ChangeListener<Number>() {
@Override
public void changed(ObservableValue ov,
Number value, Number new_value) {
label1.setText(lview1.getItems().toString());

label1.setText(str1+ Integer.toString(new_value.intValue()));
//label1.setText(str1+ Integer.toString(new_value.hashCode()));
}
});

//groot.getChildren().addAll(btn2,label1);
groot.getChildren().addAll(btn1,btn2,label1,btn3, lview1);
Scene scene = new Scene(groot, 350, 150);
primaryStage.setScene(scene);
primaryStage.setTitle("JavaFx ListView");
primaryStage.show();
}

public static void main(String[] args) throws SQLException {
launch(args);
}
}
class DemoEventHandler1 implements EventHandler<ActionEvent>{

@Override
public void handle(ActionEvent event) {
Platform.exit();

}
}

Runtime Views:

addAll::Clicked

Checking items, 2 and 5

 

Removing elements, 2,4,and setting "listaddALL" to false. Now items "APR" indexed at 2, and "MAY" at 3

If you click Remove items again