Em chưa học java swing mà em có bài tập kết thúc môn về làm giao diện mô phỏng các thuật toán sắp xếp. Nên e nhờ mọi người giải thích giùm em bài code này với ạ, và để làm được code như thế này thì e học những gì ạ? Thời gian hơi ít nên e chỉ học cái chính để làm thôi ạ. Em cảm ơn.
public class FormMain extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel contentPane;
private JLabel lbTitle;
private JPanel pnImitiate;
private JPanel pnArray;
private JButton btnCreateArray;
private JButton btnRandom;
private boolean isIncrease = true;
private JButton btnSort;
public int num;
private JLabel[] lbArrays;
private int[] array;
private static FormMain frame;
private Thread[] threads = new Thread[1000000];
private int curT = -1;
private int time = 50;
private int step = 0;
private int[] lbI = new int[50];
private int[] lbJ = new int[50];
private int[] oriLocat = new int[15];
private int[] lbL = new int[50];
private int[] lbR = new int[50];
private JLabel lbPoint1 = new JLabel();
private JLabel lbPoint2 = new JLabel();
private JLabel lbPointM = new JLabel();
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
setLockAndFeel();
try {
frame = new FormMain();
frame.setExtendedState(JFrame.MAXIMIZED_BOTH); // Ch?nh Full m�n h?nh
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public FormMain() {
setBackground(SystemColor.inactiveCaption);
setModalExclusionType(ModalExclusionType.APPLICATION_EXCLUDE);
setTitle("Quick Sort by Hieu_Nghia");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 1366, 742);
contentPane = new JPanel();
contentPane.setBackground(SystemColor.menu);
contentPane.setBorder(new EmptyBorder(15, 15, 15, 15));
setContentPane(contentPane);
contentPane.setLayout(null);
lbTitle = new JLabel("QUICK SORT");
lbTitle.setBackground(SystemColor.menu);
lbTitle.setBounds(83, 10, 1347, 28);
lbTitle.setHorizontalAlignment(SwingConstants.CENTER);
lbTitle.setFont(new Font("Tahoma", Font.BOLD, 23));
contentPane.add(lbTitle);
pnImitiate = new JPanel();
pnImitiate.setBackground(SystemColor.menu);
pnImitiate.setBorder(new TitledBorder(
new EtchedBorder(EtchedBorder.LOWERED, new Color(255, 255, 255), new Color(160, 160, 160)),
"Demo quick sort", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
pnImitiate.setBounds(100, 48, 1352, 355);
contentPane.add(pnImitiate);
pnImitiate.setLayout(null);
lbPoint1.setSize(50, 25);
lbPoint1.setOpaque(true);
lbPoint1.setLocation(50, 50);
lbPoint1.setFont(new Font("Helvetica", Font.BOLD, 17));
lbPoint1.setBackground(SystemColor.menu);
lbPoint1.setHorizontalAlignment(SwingConstants.CENTER);
lbPoint1.setVerticalAlignment(SwingConstants.CENTER);
pnImitiate.add(lbPoint1);
pnImitiate.add(lbPoint2);
lbPoint2.setSize(50, 25);
lbPoint2.setOpaque(true);
lbPoint2.setLocation(50, 50);
lbPoint2.setFont(new Font("Helvetica", Font.BOLD, 17));
lbPoint2.setBackground(SystemColor.menu);
lbPoint2.setHorizontalAlignment(SwingConstants.CENTER);
lbPoint2.setVerticalAlignment(SwingConstants.CENTER);
pnImitiate.add(lbPointM);
lbPointM.setSize(50, 25);
lbPointM.setOpaque(true);
lbPointM.setLocation(50, 50);
lbPointM.setFont(new Font("Helvetica", Font.BOLD, 17));
lbPointM.setBackground(SystemColor.menu);
lbPointM.setHorizontalAlignment(SwingConstants.CENTER);
lbPointM.setVerticalAlignment(SwingConstants.CENTER);
pnArray = new JPanel();
pnArray.setBounds(431, 428, 666, 267);
contentPane.add(pnArray);
pnArray.setBackground(SystemColor.menu);
pnArray.setBorder(new TitledBorder(
new EtchedBorder(EtchedBorder.LOWERED, new Color(255, 255, 255), new Color(160, 160, 160)),
"Ch\u1EE9c n\u0103ng", TitledBorder.CENTER, TitledBorder.TOP, null, new Color(0, 0, 0)));
btnCreateArray = new JButton("Tạo Mảng");
btnCreateArray.setBackground(SystemColor.activeCaption);
btnCreateArray.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
createArrays();
}
});
btnRandom = new JButton("Ngẫu Nhiên");
btnRandom.setBackground(SystemColor.activeCaption);
btnRandom.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
createRandom();
}
});
btnSort = new JButton("Sắp xếp");
btnSort.setBackground(SystemColor.activeCaption);
btnSort.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!isSorted()) {
setState(3);
for (int i = 0; i < num; i++)
lbArrays[i].setForeground(Color.BLUE);
QuickSort();
}
}
});
GroupLayout gl_pnArray = new GroupLayout(pnArray);
gl_pnArray.setHorizontalGroup(gl_pnArray.createParallelGroup(Alignment.TRAILING)
.addGroup(gl_pnArray.createSequentialGroup().addGap(64)
.addComponent(btnCreateArray, GroupLayout.PREFERRED_SIZE, 120, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED, 86, Short.MAX_VALUE)
.addComponent(btnRandom, GroupLayout.PREFERRED_SIZE, 120, GroupLayout.PREFERRED_SIZE).addGap(83)
.addComponent(btnSort, GroupLayout.PREFERRED_SIZE, 120, GroupLayout.PREFERRED_SIZE)
.addGap(61)));
gl_pnArray.setVerticalGroup(gl_pnArray.createParallelGroup(Alignment.LEADING).addGroup(gl_pnArray
.createSequentialGroup().addGap(77)
.addGroup(gl_pnArray.createParallelGroup(Alignment.BASELINE).addGap(70)
.addComponent(btnCreateArray, GroupLayout.PREFERRED_SIZE, 25, GroupLayout.PREFERRED_SIZE)
.addComponent(btnSort, GroupLayout.PREFERRED_SIZE, 25, GroupLayout.PREFERRED_SIZE)
.addComponent(btnRandom, GroupLayout.PREFERRED_SIZE, 25, GroupLayout.PREFERRED_SIZE))
.addContainerGap(136, Short.MAX_VALUE)));
pnArray.setLayout(gl_pnArray);
setState(0);
}
public static void setLockAndFeel() {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
}
}
public void setState(int state) {
switch (state) {
case 1: // created arrays, be waiting to set value arrays.
btnRandom.setEnabled(true);
break;
case 2: // be set values, ready to sort
btnRandom.setEnabled(true);
btnSort.setEnabled(true);
break;
case 3: // sorting
btnCreateArray.setEnabled(true);
btnRandom.setEnabled(false);
btnSort.setEnabled(false);
break;
case 4: // sort done
btnCreateArray.setEnabled(true);
btnRandom.setEnabled(true);
btnSort.setEnabled(true);
break;
default:
btnCreateArray.setEnabled(true);
btnRandom.setEnabled(false);
btnSort.setEnabled(false);
}
}
public void createArrays() {
// delete previous arrays and set number elements of array
num = 10;
lbArrays = new JLabel[num];
array = new int[num];
for (int i = 0; i < num; i++) {
// create label, set text "0"
lbArrays[i] = new JLabel("0");
array[i] = 0;
pnImitiate.add(lbArrays[i]);
lbArrays[i].setText(String.valueOf(array[i]));
// set size label
lbArrays[i].setSize(50, 50);
lbArrays[i].setOpaque(true);
lbArrays[i].setForeground(Color.blue);
// set location label
if (i == 0)
lbArrays[i].setLocation(((int) ((18 - num) * 0.5) * 70) + 100, 150);
else
lbArrays[i].setLocation(lbArrays[i - 1].getX() + 70, 150);
// set fonts
lbArrays[i].setFont(new Font("Tahoma", Font.PLAIN, 30));
// set background color
lbArrays[i].setBackground(SystemColor.inactiveCaption);
// set text alignment center
lbArrays[i].setHorizontalAlignment(SwingConstants.CENTER);
lbArrays[i].setVerticalAlignment(SwingConstants.CENTER);
}
pnImitiate.add(lbPoint1);
pnImitiate.add(lbPoint2);
pnImitiate.add(lbPointM);
pnImitiate.setVisible(true);
pnImitiate.validate();
pnImitiate.repaint();
setState(1);
}
public void createRandom() {
Random rand = new Random();
for (int i = 0; i < num; i++) {
int ranNum = rand.nextInt(101) + 0;
lbArrays[i].setText(String.valueOf(ranNum));
lbArrays[i].setForeground(Color.BLUE);
array[i] = ranNum;
}
pnImitiate.setVisible(true);
pnImitiate.validate();
pnImitiate.repaint();
setState(2);
}
public void Swap(JLabel lb1, JLabel lb2) {
int x1 = lb1.getX();
int x2 = lb2.getX();
curT++;
int cur = curT;
threads[cur] = new Thread(new Runnable() {
@Override
public void run() {
try {
if (cur != 0) {
threads[cur - 1].join();
}
while (lb1.getY() > 100) {
lb1.setLocation(lb1.getX(), lb1.getY() - 10);
lb2.setLocation(lb2.getX(), lb2.getY() + 10);
lbPointM.setLocation(x2, lbPointM.getY() + 10);
Thread.sleep(time);
}
while (lb1.getX() < x2) {
lb1.setLocation(lb1.getX() + 10, lb1.getY());
lb2.setLocation(lb2.getX() - 10, lb2.getY());
lbPointM.setLocation(lb2.getX(), 250);
Thread.sleep(time);
}
while (lb1.getY() < 140) {
lb1.setLocation(lb1.getX(), lb1.getY() + 10);
lb2.setLocation(lb2.getX(), lb2.getY() - 10);
lbPointM.setLocation(x1, lbPointM.getY() - 10);
Thread.sleep(time);
}
String txtLb1 = lb1.getText();
lb1.setText(lb2.getText());
lb2.setText(txtLb1);
lb1.setLocation(x1, 150);
lb2.setLocation(x2, 150);
lb1.setBackground(SystemColor.inactiveCaption);
lb2.setBackground(SystemColor.inactiveCaption);
} catch (Exception e) {
}
}
});
threads[cur].start();
}
public void setlbPoint(JLabel lbPoint, int i, String s) {
curT++;
System.out.println(curT);
int cur = curT;
threads[cur] = new Thread(new Runnable() {
@Override
public void run() {
try {
if (cur != 0)
threads[cur - 1].join();
if (i == -1) {
lbPoint.setText("");
return;
}
if (s.charAt(0) == 'm') {
lbPoint.setLocation(lbArrays[i].getX(), 200);
lbPoint.setText(s);
} else if (s.charAt(0) == 'k') {
lbPoint.setLocation(oriLocat[i], 200);
lbPoint.setText(s + i);
} else {
lbPoint.setLocation(lbArrays[i].getX(), 275);
lbPoint.setText(s + i);
}
} catch (Exception e) {
}
}
});
threads[cur].start();
}
public void stopAllThreads() {
for (int i = 0; i < curT; i++) {
try {
threads[i].interrupt();
} catch (Exception e) {
}
}
curT = -1;
}
public void QuickSort() {
QuickSortAl(0, num - 1);
QuickSortAnimation();
step = 0;
}
public void Coloring(JLabel lb1, Color c) {
curT++;
System.out.println(curT);
int cur = curT;
threads[cur] = new Thread(new Runnable() {
@Override
public void run() {
try {
if (cur != 0)
threads[cur - 1].join();
lb1.setBackground(c);
Thread.sleep(time);
} catch (Exception e) {
}
}
});
threads[cur].start();
}
public void Coloring(int left, int right, Color c) {
curT++;
System.out.println(curT);
int cur = curT;
threads[cur] = new Thread(new Runnable() {
@Override
public void run() {
try {
if (cur != 0)
threads[cur - 1].join();
int i = left;
while (i <= right) {
if (i != (left + right) / 2)
lbArrays[i].setBackground(c);
i++;
}
Thread.sleep(time);
} catch (Exception e) {
}
}
});
threads[cur].start();
}
public void QuickSortAnimation() {
int s, i, j;
for (s = 0; s < step; s++) {
i = lbI[s];
j = lbJ[s];
setlbPoint(lbPoint1, i, "i = ");
setlbPoint(lbPoint2, j, "j = ");
if (i != j) {
Swap(lbArrays[i], lbArrays[j]);
}
if (lbL[s + 1] + lbR[s + 1] != lbL[s] + lbR[s]) {
Coloring(lbArrays[(lbL[s] + lbR[s]) / 2], SystemColor.inactiveCaption);
Coloring(lbL[s], lbR[s], SystemColor.inactiveCaption);
}
}
}
public void QuickSortAl(int left, int right) {
if (isIncrease) {
int i, j, x;
x = array[(left + right) / 2];
i = left;
j = right;
while (i < j) {
while (array[i] < x) {
i++;
}
while (array[j] > x) {
j--;
}
if (i <= j) {
if (array[i] != array[j]) {
int temp = array[i];
array[i] = array[j];
array[j] = temp;
if (i != j) {
lbL[step] = left;
lbR[step] = right;
lbI[step] = i;
lbJ[step] = j;
step++;
}
}
i++;
j--;
}
}
if (left < j)
QuickSortAl(left, j);
if (i < right)
QuickSortAl(i, right);
} else {
int i, j, x;
x = array[(left + right) / 2];
i = left;
j = right;
while (i < j) {
while (array[i] > x) {
i++;
}
while (array[j] < x) {
j--;
}
if (i <= j) {
if (array[i] != array[j]) {
int temp = array[i];
array[i] = array[j];
array[j] = temp;
if (i != j) {
lbL[step] = left;
lbR[step] = right;
lbI[step] = i;
lbJ[step] = j;
step++;
}
}
i++;
j--;
}
}
if (left < j)
QuickSortAl(left, j);
if (i < right)
QuickSortAl(i, right);
}
}
public void setArray(int[] array) {
num = 10;
lbArrays = new JLabel[num];
this.array = array;
for (int i = 0; i < num; i++) {
// create label, set text "0"
lbArrays[i] = new JLabel(String.valueOf(array[i]));
pnImitiate.add(lbArrays[i]);
// set size label
lbArrays[i].setSize(50, 50);
lbArrays[i].setOpaque(true);
lbArrays[i].setForeground(Color.BLUE);
// set location label
if (i == 0)
lbArrays[i].setLocation(((int) ((18 - num) * 0.5) * 70) + 100, 150);
else
lbArrays[i].setLocation(lbArrays[i - 1].getX() + 70, 150);
// set fonts
lbArrays[i].setFont(new Font("Tahoma", Font.PLAIN, 30));
// set background color
lbArrays[i].setBackground(SystemColor.inactiveCaption);
// set text alignment center
lbArrays[i].setHorizontalAlignment(SwingConstants.CENTER);
lbArrays[i].setVerticalAlignment(SwingConstants.CENTER);
}
pnImitiate.setVisible(true);
pnImitiate.validate();
pnImitiate.repaint();
setState(2);
}
public boolean isSorted() {
if (isIncrease) {
for (int i = 0; i < array.length - 1; i++)
if (array[i] > array[i + 1])
return false;
} else {
for (int i = 0; i < array.length - 1; i++)
if (array[i] < array[i + 1])
return false;
}
return true;
}
}
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