NetBeans中的Stopwatch / Timer项目计数的milisecods（秒）比应该慢的
我做过和这个家伙一样的项目。没有错误...它的速度大约是速度的两倍... https://www.youtube.com/watch?v=LoKQvAQpL3w 代码：
package stoperica;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* Stoperica.java
*
* Created on May 15, 2019, 6:51:35 PM
*/
/**
*
* @author 1199
*/
public class Stoperica extends javax.swing.JFrame {
/** Creates new form Stoperica */
static int sat = 0;
static int minut = 0;
static int sekunda = 0;
static int milisek = 0;
static boolean state = true;
public Stoperica() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
sat_label = new javax.swing.JLabel();
milisek_label = new javax.swing.JLabel();
minut_label = new javax.swing.JLabel();
sekunda_label = new javax.swing.JLabel();
bstart = new javax.swing.JButton();
bpauza = new javax.swing.JButton();
breset = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
sat_label.setFont(new java.awt.Font("SansSerif", 1, 36));
sat_label.setText("00 :");
milisek_label.setFont(new java.awt.Font("SansSerif", 1, 18));
milisek_label.setText("00");
minut_label.setFont(new java.awt.Font("SansSerif", 1, 36));
minut_label.setText("00 :");
minut_label.setToolTipText("");
sekunda_label.setFont(new java.awt.Font("SansSerif", 1, 36));
sekunda_label.setText("00.");
bstart.setBackground(new java.awt.Color(-15740401,true));
bstart.setFont(new java.awt.Font("SansSerif", 1, 18));
bstart.setText("Start");
bstart.setToolTipText("");
bstart.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
bstartActionPerformed(evt);
}
});
bpauza.setBackground(new java.awt.Color(-1048576,true));
bpauza.setFont(new java.awt.Font("SansSerif", 1, 18));
bpauza.setText("Pauza");
bpauza.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
bpauzaActionPerformed(evt);
}
});
breset.setBackground(new java.awt.Color(-987136,true));
breset.setFont(new java.awt.Font("SansSerif", 1, 18));
breset.setText("Reset");
breset.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
bresetActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(63, 63, 63)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(sat_label, javax.swing.GroupLayout.PREFERRED_SIZE, 74, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(bstart, javax.swing.GroupLayout.DEFAULT_SIZE, 83, Short.MAX_VALUE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(minut_label, javax.swing.GroupLayout.PREFERRED_SIZE, 74, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(sekunda_label)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(milisek_label, javax.swing.GroupLayout.PREFERRED_SIZE, 124, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(bpauza)
.addGap(18, 18, 18)
.addComponent(breset))))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(80, 80, 80)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(sekunda_label, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(minut_label, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(sat_label, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(milisek_label, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(bstart, javax.swing.GroupLayout.DEFAULT_SIZE, 62, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(bpauza, javax.swing.GroupLayout.DEFAULT_SIZE, 60, Short.MAX_VALUE)
.addComponent(breset, javax.swing.GroupLayout.DEFAULT_SIZE, 62, Short.MAX_VALUE)))
.addGap(89, 89, 89))
);
pack();
}// </editor-fold>
private void bstartActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
state = true;
Thread t = new Thread()
{
public void run()
{
for(;;)
{
if(state == true)
{
try
{
sleep(1);
if (milisek>600)
{
milisek = 0;
sekunda++;
}
if (sekunda>60)
{
milisek = 0;
sekunda = 0;
minut++;
}
if (minut>60)
{
milisek = 0;
sekunda = 0;
minut = 0;
sat++;
}
milisek_label.setText(""+milisek);
milisek++;
if(sekunda < 10) {
sekunda_label.setText("0"+sekunda + ".");
} else {
sekunda_label.setText(sekunda + ".");
}
if(minut < 10) {
minut_label.setText("0"+minut + " :");
} else {
minut_label.setText(minut + " :");
}
if(sat < 10) {
sat_label.setText("0"+sat+" :");
} else {
sat_label.setText(""+sat+" :");
}
}
catch(InterruptedException e)
{
}
} else {
break;
}
}
}
};
t.start();
}
private void bpauzaActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
state = false;
}
private void bresetActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
state = false;
sat = 0;
minut = 0;
sekunda = 0;
milisek = 0;
sat_label.setText("00 :");
minut_label.setText("00 :");
sekunda_label.setText("00.");
milisek_label.setText("00");
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Stoperica().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton bpauza;
private javax.swing.JButton breset;
private javax.swing.JButton bstart;
private javax.swing.JLabel milisek_label;
private javax.swing.JLabel minut_label;
private javax.swing.JLabel sat_label;
private javax.swing.JLabel sekunda_label;
// End of variables declaration
}