我想从 src 文件夹在我的 JTabbed 窗格布局上实现 200 * 200 图片。
我的问题是什么都没有显示-没有错误,没有例外,也没有图片。
我认为我不必声明该目录并将其设置为私有,因为它已包含在 src 文件夹中。
import java.awt.*;
import javax.swing.*;
import java.awt.event.KeyEvent;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JFrame;
public class Example1
extends JFrame
{
private JTabbedPane tabbedPane;
private JPanel panel1;
public Example1()
{
// NOTE: to reduce the amount of code in this example, it uses
// panels with a NULL layout. This is NOT suitable for
// production code since it may not display correctly for
// a look-and-feel.
setTitle( "Program" );
setSize( 800, 400 );
setBackground( Color.gray );
JPanel topPanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
getContentPane().add( topPanel );
// Create the tab pages
createPage1();
// Create a tabbed pane
tabbedPane = new JTabbedPane();
tabbedPane.addTab( "Tab Page", panel1 );
topPanel.add( tabbedPane, BorderLayout.CENTER );
}
public void createPage1()
{
panel1 = new JPanel();
panel1.setLayout( null );
ImageIcon pic = new ImageIcon("test.png");
JLabel label = new JLabel (pic);
panel1.add(label);
label.setVisible (true);
label.setBounds( 200, 200, 200, 400 );
}
// Main method to get things started
public static void main( String args[] )
{
// Create an instance of the test application
Example1 mainFrame = new Example1();
mainFrame.setVisible( true );
}
}
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