jlist

问题 I'm currently working on a personal project, in this project, the user is asked to create objects under 3 different categories, so after the object is created, there's a method that check's the category of the object and then it adds it to an ArrayList. More Details: the object is called Vehicle, there're three categories: Two wheels, three weels, three wheels. So, when you create a new Vehicle, you'd be asked to specify what kind of vehicles you're creating, say you said two wheels, a method

问题 I'm trying to add a i guess you would call it a sub list to each item on a list. I've built a custom renderer that gives the below output. As you can see something isn't right here an i've had no luck tracking down an answer to my problem. I'm guessing i need to change something in the layout of the panel to get the correct result but no idea what. http://i.stack.imgur.com/jCKjJ.jpg import java.awt.BorderLayout; import java.awt.Component; import java.awt.Container; import java.awt.GridLayout;

问题 Does anyone have any good tutorials on how to fill a JList (within a JPanel ) with user inputted data. Specifically, I want to add people to a selected roster. Is this a matter of filling it with an ArrayList ? Any help would be much appreciated. 回答1: create a ListModel which wrapps your java.util.List (e.g. by extending AbstractListModel) configure JList to use this model create and configure a renderer to format/ display the Objects in your list as needed http://docs.oracle.com/javase

问题 Does anyone have any good tutorials on how to fill a JList (within a JPanel ) with user inputted data. Specifically, I want to add people to a selected roster. Is this a matter of filling it with an ArrayList ? Any help would be much appreciated. 回答1: create a ListModel which wrapps your java.util.List (e.g. by extending AbstractListModel) configure JList to use this model create and configure a renderer to format/ display the Objects in your list as needed http://docs.oracle.com/javase

问题 Does anyone have any good tutorials on how to fill a JList (within a JPanel ) with user inputted data. Specifically, I want to add people to a selected roster. Is this a matter of filling it with an ArrayList ? Any help would be much appreciated. 回答1: create a ListModel which wrapps your java.util.List (e.g. by extending AbstractListModel) configure JList to use this model create and configure a renderer to format/ display the Objects in your list as needed http://docs.oracle.com/javase

问题 Is there a way to implement lazy loading with Swing's JList? 回答1: In a way, yes. You can create a custom ListModel which uses the getElementAt(int index) method to load the correct value if it hasn't already been loaded. See the example in the Javadocs for JList: // This list model has about 2^16 elements. Enjoy scrolling. ListModel bigData = new AbstractListModel() { public int getSize() { return Short.MAX_VALUE; } public Object getElementAt(int index) { return "Index " + index; } }; 回答2: I

问题 Is there a way to implement lazy loading with Swing's JList? 回答1: In a way, yes. You can create a custom ListModel which uses the getElementAt(int index) method to load the correct value if it hasn't already been loaded. See the example in the Javadocs for JList: // This list model has about 2^16 elements. Enjoy scrolling. ListModel bigData = new AbstractListModel() { public int getSize() { return Short.MAX_VALUE; } public Object getElementAt(int index) { return "Index " + index; } }; 回答2: I

问题 Is there a way to implement lazy loading with Swing's JList? 回答1: In a way, yes. You can create a custom ListModel which uses the getElementAt(int index) method to load the correct value if it hasn't already been loaded. See the example in the Javadocs for JList: // This list model has about 2^16 elements. Enjoy scrolling. ListModel bigData = new AbstractListModel() { public int getSize() { return Short.MAX_VALUE; } public Object getElementAt(int index) { return "Index " + index; } }; 回答2: I

来源： https://stackoverflow.com/questions/53255676/swing-jlist-how-to-show-string-from-an-object

问题 I am looking for a Java Swing Version of 2 JLists that interact with one another. An "available" list and a "selected" list. You can move elements from one list to the other. I also would like to be able to move items in the "selected" list up and down... 回答1: Been looking all over for this and couldn't find it so I decided to code it myself and share it.. This is a Dual JList which allows moving elements from one to the other via buttons or mouse double click. I used the example here to come