How to place a JButton at a desired location in a JFrame using Java

Question

I want to put a Jbutton on a particular coordinate in a JFrame  I put setBounds for the JPanel  which I placed on the JFrame  and also setBounds for the JButton  However  they dont seem to function as expected   My Output      This is my code   import java awt Color  import javax swing JButton  import javax swing JFrame  import javax swing JPanel   public class Control extends JFrame           JPanel     JPanel pnlButton   new JPanel           Buttons     JButton btnAddFlight   new JButton  Add Flight         public Control                FlightInfo setbounds         btnAddFlight setBounds 60  400  220  30               JPanel bounds         pnlButton setBounds 800  800  200  100               Adding to JFrame         pnlButton add btnAddFlight           add pnlButton               JFrame properties         setSize 400  400           setBackground Color BLACK           setTitle  Air Traffic Control            setLocationRelativeTo null           setDefaultCloseOperation JFrame EXIT ON CLOSE           setVisible true              public static void main String   args            new Control              How can place the JButton at coordinate  0  0

User · Answer

Define somewhere the consts     private static final int BUTTON LOCATION X   300      location x  private static final int BUTTON LOCATION Y   50       location y  private static final int BUTTON SIZE X   140          size height private static final int BUTTON SIZE Y   50           size width   and then below                     JButton startButton   new JButton  Click Me To Start                        startButton setBounds 300  50 140  50                    startButton setBounds BUTTON LOCATION X                                       BUTTON LOCATION Y                                        BUTTON SIZE X                                         BUTTON SIZE Y                    contentPane add startButton     where contentPane is the Container  object that holds the entire frame      JFrame frame   new JFrame  Some name goes here     Container contentPane   frame getContentPane      I hope this helps   works great for me

User · Answer

I have figured it out lol  for the button do  setBounds 0  0  220  30  The  setBounds layout is like this  int x  int y  int width  int height

User · Answer

First  remember your JPanel size height and size width  then observe  JButton coordinates is  xo  yo  x length   y length   If your window is 800x600  you just need to write   JButton setBounds 0  500  100  100     You just need to use a coordinate gap to represent the button  and know where the window ends and where the window begins

User · Answer

You should set layout first by syntax pnlButton setLayout    and then choose the most suitable layout which u want  Ex  pnlButton setLayout new FlowLayout FlowLayout LEADING  5  5     And then  take that JButton into JPanel

User · Answer

Use child setLocation 0  0  on the button  and parent setLayout null   Instead of using setBounds      on the JFrame to size it  consider using just setSize      and letting the OS position the frame     JPanel JPanel pnlButton   new JPanel      Buttons JButton btnAddFlight   new JButton  Add Flight     public Control            JFrame layout     this setLayout null          JPanel layout     pnlButton setLayout null          Adding to JFrame     pnlButton add btnAddFlight       add pnlButton           postioning     pnlButton setLocation 0 0

User · Answer

Following line should be called before you add your component   pnlButton setLayout null     Above will set your content panel to use absolute layout  This means you d always have to set your component s bounds explicitly by using setBounds method   In general I wouldn t recommend using absolute layout

[java] How to place a JButton at a desired location in a JFrame using Java

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