Line is a part of JavaFX. The Line class represents a line in a 2D space.
Constructor for the class:
- Line(): Creates a new instance for line
- Line(double startX, double startY, double endX, double endY): Creates a new Line with specified starting and ending point
Commonly Used Methods:
Method | Explanation |
---|---|
getEndX() | returns the x coordinate for the end point |
getEndY() | returns the y coordinate for the end point |
getStartX() | returns the x coordinate for the start point |
getStartY() | returns the y coordinate for the start point |
setEndX(double value) | sets the x coordinate for the end point |
setEndY(double value) | sets the y coordinate for the end point |
setStartX(double value) | sets the x coordinate for the start point |
setStartY(double value) | sets the y coordinate for the start point |
Below programs illustrate the Line class:
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Java program to create a line with starting and ending coordinates passed as arguments: This program creates a Line indicated by the name line( start point and the end point is passed as arguments). The Line will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the line is attached. The group is attached to the scene. Finally, the show() method is called to display the final results.
Java
// Java program to create a line with starting // and ending coordinates passed as arguments import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.shape.DrawMode;
import javafx.scene.layout.*;
import javafx.event.ActionEvent;
import javafx.scene.shape.Line;
import javafx.scene.control.*;
import javafx.stage.Stage;
import javafx.scene.Group;
public class line_0 extends Application {
// launch the application
public void start(Stage stage)
{
// set title for the stage
stage.setTitle( "creating line" );
// create a line
Line line = new Line( 10 .0f, 10 .0f, 200 .0f, 140 .0f);
// create a Group
Group group = new Group(line);
// translate the line to a position
line.setTranslateX( 100 );
line.setTranslateY( 100 );
// create a scene
Scene scene = new Scene(group, 500 , 300 );
// set the scene
stage.setScene(scene);
stage.show();
}
// Main Method
public static void main(String args[])
{
// launch the application
launch(args);
}
} |
-
Output:
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Java program to create a line with starting and ending coordinates set using function setStartX(), setStartY()setEndX(), setEndY() function: This program creates a Line indicated by the name line(start point and end point is set using setEndX(), setEndY(), setStartX(), setStartY() function). The Line will be created inside a scene, which in turn will be hosted inside a stage. The function setTitle() is used to provide title to the stage. Then a Group is created, and the line is attached.The group is attached to the scene. Finally, the show() method is called to display the final results.
Java
// Java program to create a line with starting // and ending coordinates set using function // setStartX(), setStartY() setEndX(), // setEndY() function import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.shape.DrawMode;
import javafx.scene.layout.*;
import javafx.event.ActionEvent;
import javafx.scene.shape.Line;
import javafx.scene.control.*;
import javafx.stage.Stage;
import javafx.scene.Group;
public class line_1 extends Application {
// launch the application
public void start(Stage stage)
{
// set title for the stage
stage.setTitle( "creating line" );
// create a line
Line line = new Line();
// set starting position
line.setStartX( 10 .0f);
line.setStartY( 10 .0f);
// set ending position
line.setEndX( 140 .0f);
line.setEndY( 140 .0f);
// create a Group
Group group = new Group(line);
// translate the line to a position
line.setTranslateX( 100 );
line.setTranslateY( 100 );
// create a scene
Scene scene = new Scene(group, 500 , 300 );
// set the scene
stage.setScene(scene);
stage.show();
}
// Main Method
public static void main(String args[])
{
// launch the application
launch(args);
}
} |
-
Output:
Note: The above programs might not run in an online IDE. Please use an offline compiler.
Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/shape/Line.html
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