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Thread: Hello!

  1. #1
    Junior Member nazislam's Avatar
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    Smile Hello!

    Hello everyone, I am Naz Islam and I am a Java developer.

    Looking for learning new tricks in Java and helping others.

    Thank you.

  2. #2
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    Default Re: Hello!

    hello could you help with this the drawing doesn't upload
    // code begins here
    import javax.swing.*;
    import java.awt.*;



    public class ColorPanel extends JPanel {

    public ColorPanel(Color backColor) {

    setBackground(backColor);

    }

    public void paintComponent(Graphics g)
    {

    super.paintComponent(g);
    g.setColor(Color.blue);
    g.drawString("hello", 100, 45);

  3. #3
    Junior Member nazislam's Avatar
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    Default Re: Hello!

    I think your code is almost right. However, I think you need JFrame in order to have graphics on the screen. Notice ColorPanel uses Graphics in order to draw string on the screen. In Main class, I have created an instance of JFrame and ColorPanel. Since the constructor of ColorPanel takes a color argument, I passed Color.BLACK. Finally, I've added that to the frame. Hope this helps. Let me know your comments


    Main.java
    import javax.swing.*;
    import java.awt.*;
     
    public class Main {
        public static void main(String[] args) {
            JFrame f = new JFrame();
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            ColorPanel p = new ColorPanel(Color.BLACK);
            f.add(p);
            f.setSize(400, 250);
            f.setVisible(true);
        }
    }


    ColorPanel.java
    import java.awt.*;
    import javax.swing.*;
     
    public class ColorPanel extends JPanel {
        public ColorPanel(Color backColor) {
            setBackground(backColor);
        }
        public void paintComponent(Graphics g) {
            super.paintComponent(g);
     
            g.setColor(Color.BLUE);
            g.drawString("hello", 100, 45);
        }
    }
    Last edited by nazislam; January 22nd, 2019 at 01:04 AM. Reason: Updated formatting.
    I am a Java developer and I blog about Java programming, web development and algorithm design.
    You may follow me on twitter @nazalislam.

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: Hello!

    @nazislam
    Please read: The Problem with Spoon-feeding
    If you don't understand my answer, don't ignore it, ask a question.