1、附上代码看效果
package UI;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JTabbedPane;
import javax.swing.JLabel;
import java.awt.Color;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import javax.swing.JScrollPane;
import javax.swing.JComboBox;
import java.awt.CardLayout;
public class GUI extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
GUI frame = new GUI();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public GUI() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 556, 409);
contentPane = new JPanel();
contentPane.setToolTipText("");
contentPane.setForeground(new Color(0, 0, 0));
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(new BorderLayout(0, 0));
JPanel panel = new JPanel();
contentPane.add(panel, BorderLayout.CENTER);
panel.setLayout(new BorderLayout(0, 0));
JLabel lblconponents = new JLabel("\u9762\u677F\u4E00\u6B21\u53EA\u80FD\u63D2\u5165\u4E00\u4E2A\u7EC4\u4EF6Conponents");
panel.add(lblconponents, BorderLayout.CENTER);
}
}
2、创建过程3、能够添加多少个组件完全取决于选择的布局方式