nowtime.java

用Java实现时钟

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * NowTime.java
 *
 * Created on 2009-5-9, 14:21:14
 */

package clock;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 *
 * @author Administrator
 */
public class NowTime extends javax.swing.JPanel {

    /** Creates new form NowTime */
    public NowTime() {
        initComponents();
         final SimpleDateFormat t = new SimpleDateFormat("    kk:mm:ss");
         int delay = 1000;
       javax.swing.Timer timer = new javax.swing.Timer(delay, new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                Date date1 = new Date();
                tt.setText(t.format(date1));
            }
        });
        timer.start();
    }

    /** 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">//GEN-BEGIN:initComponents
    private void initComponents() {

        tt = new javax.swing.JTextField();

        tt.setFont(new java.awt.Font("楷体_GB2312", 1, 24)); // NOI18N
        tt.setCaretColor(new java.awt.Color(255, 0, 51));
        tt.setEnabled(false);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(tt, javax.swing.GroupLayout.DEFAULT_SIZE, 242, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(tt, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 35, Short.MAX_VALUE)
        );
    }// </editor-fold>//GEN-END:initComponents


    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTextField tt;
    // End of variables declaration//GEN-END:variables

}