软件安装界面（java swing简单例子）

只实现了文件选取，以及第一个到第二个向导界面的跳转功能，暂作备份。

import java.awt.Color;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.File;import javax.swing.JButton;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;public class Entrance implements ActionListener {private JFrame firstFram,secondFram;private JPanel firstPanel;private JPanel secondPanel;private JFileChooser awPathCh = new JFileChooser();private JTextField awPathText;private static String awFile;private void firstFram(){firstFram = new JFrame();firstFram.setSize(500,400);firstFram.setDefaultCloseOperation(3);firstFram.setResizable(false);firstPanel = new JPanel();firstPanel.setBackground(new Color(90,90,146));firstPanel.setLayout(null);awPathText = new JTextField();awPathText.setSize(300,25);awPathText.setBounds(160, 260, 200, 25);JButton awButton,next;awButton = new JButton("File");awButton.setName("awButton");awButton.setBounds(360, 260, 60, 25);awButton.addActionListener(this);next = new JButton("Next");next.setName("next1");next.setBounds(250, 320, 75, 26);next.addActionListener(this);firstPanel.add(awPathText);firstPanel.add(awButton);firstPanel.add(next);firstFram.add(firstPanel);firstFram.setVisible(true);}private void secondFram(){secondFram = new JFrame();secondFram.setSize(500,400);secondFram.setDefaultCloseOperation(3);secondFram.setResizable(false);secondPanel = new JPanel();secondPanel.setBackground(new Color(0,0,0));secondPanel.setLayout(null);JButton programButton,back,next;programButton = new JButton("File");programButton.setName("awPathButton");programButton.setBounds(360, 260, 60, 25);programButton.addActionListener(this);back = new JButton("Back");back.setName("back2");back.setBounds(200, 320, 75, 26);back.addActionListener(this);next = new JButton("Next");next.setName("next2");next.setBounds(300, 320, 75, 26);next.addActionListener(this);secondPanel.add(programButton);secondPanel.add(back);secondPanel.add(next);secondFram.add(secondPanel);secondFram.setVisible(true);}public static void main(String[] args) {Entrance entrance = new Entrance();entrance.firstFram();}public void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubJButton bt = (JButton) e.getSource();if (bt.getName() == "awButton") {int showOpenDialog = awPathCh.showOpenDialog(firstPanel);File selectedFile = awPathCh.getSelectedFile();if(null != selectedFile && showOpenDialog == JFileChooser.APPROVE_OPTION){awPathText.setText(selectedFile.getPath());awFile = awPathText.getText();}}else if(bt.getName() == "next1" && awPathText.getText().length() > 4){firstFram.removeAll();firstFram.dispose();secondFram();}else if(bt.getName() == "back2"){secondFram.removeAll();secondFram.dispose();firstFram();awPathText.setText(awFile);}}}