awt

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Null Pointer Exception in GLProfile with JOGL 2.0

JOGL 2.0 added a GLProfile parameter to GLCapabilities. For whatever reason, with this simple code: import javax.media.opengl.GLCapabilities;[详细]

2023-03-24 21:50 分类：问答
when i am trying to save the data to mysql, an exception is being thrown( java.sql.SQLException)

import java.awt.Panel; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.sql.DriverManager;[详细]

2023-03-23 08:08 分类：问答
What's the use case of a protected method in a final class in Java?

Consider this code from the official OpenJDK source of java.awt.font.TextLayout: public final class TextLayout {[详细]

2023-03-23 08:01 分类：问答
Rounded borders on a JPanel

What I\'ve got here is a JPanel with a rounded border that is set up as such: panel.setBorder(new LineBorder(PanelColor, 5, true));[详细]

2023-03-23 07:51 分类：问答
AWT custom rendering - capture smooth resizes and eliminate resize flicker

I\'ve been looking at this for several months and so far this is the best I have come up with. The structure (render outside of EDT) is not up for debate, as our application operates this way and wil[详细]

2023-03-22 17:19 分类：问答
Programmatically Generating Actionevent in Java

I\'m making an App. in java , in which there is a Button to which I have added an actionlistener. The ActionEvent it(the button) generates executes some code. Now I want this piece of code to run when[详细]

2023-03-22 15:49 分类：问答
How can I save data from JTextField into the mysql database?

import java.awt.Panel; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet;[详细]

2023-03-22 11:07 分类：问答
Java: setText on a JLabel in Swing issues

I have an issue setting a JLabel\'s text using a method in the class creating the GUI from a different class calling that method. The method to set the JLabel is called outside the GUI but when called[详细]

2023-03-22 10:36 分类：问答
JSplitPane and Canvas

As part of an application I\'m writing I need to mix the old (heavyweight) Canvas with swing components - specifically nesting them inside a JSplitPane. However, when I do this the divider refuses to[详细]

2023-03-21 02:54 分类：问答
How can make the icon alive in my AWT button()? On click the icon goes away

How can i keep the icon always alive, on click it does not get reloaded. public static class SoftButton extends Button[详细]

2023-03-20 18:35 分类：问答