JButton() only working when mouse hovers

Question

    import java.awt.*;
    import java.awt.image.*;
    import java.awt.event.*;
    import javax.imageio.*;
    import java.lang.*;
    import java.io.*;
    import         


        

Answer 1

Likely you have a layout problem where you're trying to add JButtons with absolute bounds into a container that uses a non-null layout manager. Suggestions

• Do not use setBounds and absolute positioning to size and place your components.
• Read up on and use the layout managers to do this heavy lifting for you: Lesson: Laying Out Components Within a Container
• Don't forget to call pack() on your JFrame after adding all components
• Call setVisible(true) after calling pack() and again call both only after adding all components to your GUI.
• A null layout is available if you absolutely need to use absolute positioning of components, but regardless, you should strive to avoid using it.