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?1 import ?javax.swing. * ;
 ?2 import ?java.awt. * ;
 ?3 import ?java.awt.event. * ;
 ?4 import ?javax.swing.event. * ;
 ?5 import ?javax.swing.border. * ;
 ?6
?7
?8 public ? class ?JProgressEx? extends ?JApplet {
 ?9 ? private ? int ?min = 0 ,max = 100 ;
 10 ?? private ?JProgressBar?pb? = ? new ?JProgressBar();
 11 ? private ?Timer?t;
 12 ?? private ? int ?i;
 13 ???JPanel?panel? = ? new ?JPanel();
 14 ?? public ?JProgressEx() {
 15 ??}
16 ?? public ? synchronized ? void ?setValue() {
 17 ???i = 0 ;
 18 ??}
19 ?? public ? synchronized ? int ?getValue() {
 20 ??? return ?i;
 21 ??}
22 ?? public ? synchronized ? void ?addValue() {
 23 ???i ++ ;
 24 ??}
25 ?? public ? void ?setMin() {
 26 ??? this .min? = ?min;
 27 ??}
28 ?? public ? int ?getMin() {
 29 ??? return ?min;
 30 ??}
31 ?? public ? void ?setMax() {
 32 ??? this .max? = ?max;
 33 ??}
34 ?? public ? int ?getMax() {
 35 ??? return ?max;
 36 ??}
37
38 ? public ? void ?init()? {
 39 ????Container?cp? = ?getContentPane();
 40 ????pb.setMinimum(min);
 41 ????pb.setMaximum(max);
 42 ????pb.setBackground?(Color.white);
 43 ????pb.setForeground?(Color.red);
 44 ????pb.setStringPainted( true )?;
 45 ????cp.add(panel.add(pb),BorderLayout.PAGE_START);
 46 ??}
47 ?? public ? void ?start() {
 48 ???t? = ? new ?Timer( 100 ,? new ?ActionListener()? {
 49 ?????? public ? void ?actionPerformed(ActionEvent?evt)? {
 50 ???????? if (getValue() < getMax()) {
 51 ??????????addValue();
 52 ??????????pb.setValue(getValue());
 53 ????????} else {
 54 ??????????setValue();
 55 ??????????t.stop();
 56 ????????}
57 ????}
58 ????} );
 59 ??t.start();
 60 ??}
61 ?? public ? static ? void ?main(String[]?args)? {
 62 ?? final ?JProgressEx?pg? = ? new ??JProgressEx();
 63 ????JFrame?frame? = ? new ?JFrame( " JProgressEx " );
 64 ????frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 65 ????frame.getContentPane().add(pg);
 66 ????frame.setSize( 300 ,? 200 );
 67 ????pg.init();
 68 ????frame.setVisible( true );
 69 ????pg.start();
 70 ??}
71 }
72

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?7
?8 public ? class ?JProgressEx? extends ?JApplet {
 ?9 ? private ? int ?min = 0 ,max = 100 ;
 10 ?? private ?JProgressBar?pb? = ? new ?JProgressBar();
 11 ? private ?Timer?t;
 12 ?? private ? int ?i;
 13 ???JPanel?panel? = ? new ?JPanel();
 14 ?? public ?JProgressEx() {
 15 ??}
16 ?? public ? synchronized ? void ?setValue() {
 17 ???i = 0 ;
 18 ??}
19 ?? public ? synchronized ? int ?getValue() {
 20 ??? return ?i;
 21 ??}
22 ?? public ? synchronized ? void ?addValue() {
 23 ???i ++ ;
 24 ??}
25 ?? public ? void ?setMin() {
 26 ??? this .min? = ?min;
 27 ??}
28 ?? public ? int ?getMin() {
 29 ??? return ?min;
 30 ??}
31 ?? public ? void ?setMax() {
 32 ??? this .max? = ?max;
 33 ??}
34 ?? public ? int ?getMax() {
 35 ??? return ?max;
 36 ??}
37
38 ? public ? void ?init()? {
 39 ????Container?cp? = ?getContentPane();
 40 ????pb.setMinimum(min);
 41 ????pb.setMaximum(max);
 42 ????pb.setBackground?(Color.white);
 43 ????pb.setForeground?(Color.red);
 44 ????pb.setStringPainted( true )?;
 45 ????cp.add(panel.add(pb),BorderLayout.PAGE_START);
 46 ??}
47 ?? public ? void ?start() {
 48 ???t? = ? new ?Timer( 100 ,? new ?ActionListener()? {
 49 ?????? public ? void ?actionPerformed(ActionEvent?evt)? {
 50 ???????? if (getValue() < getMax()) {
 51 ??????????addValue();
 52 ??????????pb.setValue(getValue());
 53 ????????} else {
 54 ??????????setValue();
 55 ??????????t.stop();
 56 ????????}
57 ????}
58 ????} );
 59 ??t.start();
 60 ??}
61 ?? public ? static ? void ?main(String[]?args)? {
 62 ?? final ?JProgressEx?pg? = ? new ??JProgressEx();
 63 ????JFrame?frame? = ? new ?JFrame( " JProgressEx " );
 64 ????frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 65 ????frame.getContentPane().add(pg);
 66 ????frame.setSize( 300 ,? 200 );
 67 ????pg.init();
 68 ????frame.setVisible( true );
 69 ????pg.start();
 70 ??}
71 }
72

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