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    To draw a line between two points in Java, you can use the Graphics or Graphics2D class, which are part of the java.awt package. Below are two common approaches to achieve this.

    Using Graphics.drawLine()

    This method is straightforward and works well for basic line drawing.

    1. Create a Swing Component Override the paintComponent() method of a JPanel to include the drawing logic.

    2. Draw the Line Use the drawLine(int x1, int y1, int x2, int y2) method of the Graphics object.

    Example Code:

    import javax.swing.*;
    import java.awt.*;

    public class LineDrawingExample extends JPanel {
    @Override
    protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.setColor(Color.BLUE); // Set line color
    g.drawLine(50, 50, 200, 200); // Draw line from (50, 50) to (200, 200)
    }

    public static void main(String[] args) {
    JFrame frame = new JFrame("Draw Line Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(400, 400);
    frame.add(new LineDrawingExample());
    frame.setVisible(true);
    }
    }
    コピーしました。

    Using Graphics2D and Line2D

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    https://www.zealseeds.com/Lang/LangJava/ClassLibrary/UseDrawLine/index.html
    How to draw a horizontal line in JavaScript?

    For example, to draw a line, an application calls the following: In this code (x1, y1) is the start point of the line, and (x2, y2) is the end point of the line. So the code to draw a horizontal line is as follows: The demo below accumulates all mentioned techniques. Move the slider to display various weather types.

    docs.oracle.com
    Stack Overflow
    https://stackoverflow.com › questionsこの結果を翻訳する

    coordinates - How to draw lines in Java - Stack Overflow

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    https://www.zealseeds.com › Lang › LangJava › ClassLibra…

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    Drawing lines examples with Java Graphics2D

    2019年8月10日 · Java Graphics code examples to draw lines with different stroke styles: thickness, dashed.