jbutton

问题 So, I'm developing a program using the Swing library and I obviously have buttons and menu items. Some of these are supposed to do the same stuff, and I thought using the Command Pattern should be the way to do it, e.g. I have a "save" button and a "save" menu item and they have to implement the same saving algorithm. Command Pattern seems to be ok but I can't get who's the receiver in all that. Isn't a comand supposed to work on an object which implements some sort of "receiver interface",

问题 I want to be able to have a JPanel in a cell with a JButton that does some work when clicked. I looked for howtos about Cell Editors, but all examples talk about replacing the cell with another component (e.g. replace an int with a JTextField etc.) My situation is a little different: I have the following ADT class MyClass { public String title; public String url; public String path; public int annotations; } I created a custom table cell model that has 1 column and the class for that column

问题 I want to be able to have a JPanel in a cell with a JButton that does some work when clicked. I looked for howtos about Cell Editors, but all examples talk about replacing the cell with another component (e.g. replace an int with a JTextField etc.) My situation is a little different: I have the following ADT class MyClass { public String title; public String url; public String path; public int annotations; } I created a custom table cell model that has 1 column and the class for that column

问题 Does anyone have a coded implementation of SplitButton? I've tried searching some implementations but none of them work. (e.g. JSplitButton). 回答1: Demo not working != splitButton not working :-) splitButton = new JSplitButton("Split Button Demo"); splitButton.setPopupMenu(jPopupMenu2); add(splitButton); (Note: this is not a recommendation of that particular splitButton implementation, just a reminder that you should be a bit more careful in evaluating the projects you are finding. If you can

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . Need a simple Swing code to demonstrate how to add a button in a column of a Jtable using tablecellrenderer and tablecelleditor. 回答1: Add button to JTable JTable table = new JTable(new JTableModel()); JScrollPane

问题 When i try to add background in Jbutton in java by going to its properties and then icon, it then sets the background of the button but the text which i have written on the button,it moves right(outside the button area).What is the solution for this? 回答1: As far as I understand you are not setting background but you are setting Icon to button by this. And that is why you see Image on right side and text on left side. To add image as background to button you need to override paintComponent(g)

问题 Here is a simple graphics programs which adds some stars on the screen. import acm.graphics.*; import acm.program.*; import java.awt.event.*; import javax.swing.*; /** * This program creates a five-pointed star every time the * user clicks the mouse on the canvas. */ public class DrawStarMap1 extends GraphicsProgram { public void init() { /* Initializes the mouse listeners */ addMouseListeners(); /* The check box starts out in the "on" position */ fillCheckBox = new JCheckBox("Filled");

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 days ago . I am trying to create a Jbutton and which can call my program once i click on to that button. but no luck i am pretty sure i am doing something wrong can someone help. so i have made a class demoapp. java and i want to call that using jbutton. I tried activelistener concept no help. This what i want

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 days ago . I am trying to create a Jbutton and which can call my program once i click on to that button. but no luck i am pretty sure i am doing something wrong can someone help. so i have made a class demoapp. java and i want to call that using jbutton. I tried activelistener concept no help. This what i want

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 days ago . I am trying to create a Jbutton and which can call my program once i click on to that button. but no luck i am pretty sure i am doing something wrong can someone help. so i have made a class demoapp. java and i want to call that using jbutton. I tried activelistener concept no help. This what i want