JAVA Swing GUI设计 WindowBuilder Pro Container使用大全3——JScrollPane使用

1、附上源码先看效果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;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ScrollPaneConstants;

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));

JScrollPane scrollPane = new JScrollPane();
scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
contentPane.add(scrollPane);

JTextArea textArea = new JTextArea();
scrollPane.setViewportView(textArea);
}

}

2、实现过程