火车车厢重排（队列方式）

import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JScrollPane; public class Main { static int max; static TextArea ta; static TextField tf; static TextField tf1; static int step = 0; static int shape = 0; static MyCanvas C[] = new MyCanvas[20]; static final Panel p21 = new Panel(); static final CardLayout c = new CardLayout(5, 5); static int maxs=0; static int now=0; public static void main(String[] args) { final Frame f = new Frame("火车车厢重排（队列）"); f.addWindowListener((new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } })); Panel main = new Panel(); main.setLayout(new BorderLayout(10, 5)); f.setLayout(new BorderLayout(10, 5)); f.setResizable(false); // panel 1 Panel p1 = new Panel(); p1.setLayout(new BorderLayout(5, 15)); Panel p11 = new Panel(); p11.setLayout(new BorderLayout()); Label l1 = new Label("车厢序列："); tf = new TextField(40); ta = new TextArea(10, 40); ta.setEditable(false); p11.add(l1, BorderLayout.WEST); p11.add(tf, BorderLayout.CENTER); p1.add(p11, BorderLayout.NORTH); p1.add(ta, BorderLayout.CENTER); // panel 2 Panel p2 = new Panel(); p2.setPreferredSize(new Dimension(200, 400)); p2.setLayout(new BorderLayout(5, 15)); JScrollPane sp2 = new JScrollPane(); sp2.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); sp2.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER); for (int i = 0; i < 20; i++) { Main.C[i] = new MyCanvas(); } p21.setLayout(c); p21.setPreferredSize(new Dimension(200, 400)); Panel p22 = new Panel(); p22.setLayout(new BorderLayout()); Label l2 = new Label("缓冲轨数："); tf1 = new TextField(20); p22.add(l2, BorderLayout.WEST); p22.add(tf1, BorderLayout.CENTER); sp2.setViewportView(p21); p2.add(p22, BorderLayout.NORTH); p2.add(sp2, BorderLayout.CENTER); // panel 3 Panel p3 = new Panel(); p3.setLayout(new GridLayout(1, 6)); Button b0 = new Button("开始排序"); Button b1 = new Button("下一步"); Button b2 = new Button("上一步"); Button b3 = new Button("重新开始"); Button b4 = new Button("退出"); b0.addActionListener(new b0Listener()); b1.addActionListener(new b1Listener()); b2.addActionListener(new b2Listener() ); b3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { ta.setText(null); tf.setText(null); tf1.setText(null); step = 0; shape = 0; p21.removeAll(); } }); b4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); p3.add(b0); p3.add(b2); p3.add(b1); p3.add(b3); p3.add(b4); main.add(p1, BorderLayout.WEST); main.add(p2, BorderLayout.CENTER); main.add(p3, BorderLayout.SOUTH); Main.ta.setText("请输入火车车厢序列，车厢号在1~9之间，中间用英文,隔开\n请输入缓冲轨数量，数量在0~9之间"); f.add(main, BorderLayout.CENTER); f.add(new Panel(), BorderLayout.NORTH); f.add(new Panel(), BorderLayout.EAST); f.add(new Panel(), BorderLayout.WEST); f.add(new Panel(), BorderLayout.SOUTH); f.setBounds(50, 50, 800, 500); // f.pack(); f.setVisible(true); } }