如何将数据插入JTable？ [英] How to insert data into JTable?

问题描述

我编写此代码以在表格中显示字符串。

i write this code for showing strings in a table.

但它没有显示且无效。

什么是problrem？

what is problrem?

 public pamnel() {
            initComponents();
             String[] columnNames = {"First Name",
                            "Last Name",
                            "Sport",
                            "# of Years",
                            "Vegetarian"};



    Object[][] data = {
        {"Kathy", "Smith",
         "Snowboarding", new Integer(5), new Boolean(false)},
        {"John", "Doe",
         "Rowing", new Integer(3), new Boolean(true)},
        {"Sue", "Black",
         "Knitting", new Integer(2), new Boolean(false)},
        {"Jane", "White",
         "Speed reading", new Integer(20), new Boolean(true)},
        {"Joe", "Brown",
         "Pool", new Integer(10), new Boolean(false)}
    };

     jTable1 = new JTable(data, columnNames);                      

 }

编辑：
我在一个面板上添加Jtable。

I add Jtable on a panel.

在主要的添加面板中到一个jframe。

in the main add panel to a jframe.

 JFrame frame = new JFrame();
    frame.add(new pamnel());
    frame.setVisible(true);
    frame.setSize(600, 600);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

显示表格但未显示数据。
表的行和列是空的！

The table is shown but data isn't show. the row and column of table is empty!

推荐答案

您必须将JTable添加到其父组件中setVisible（）。

You have to add the JTable to its parent-component and setVisible().

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