java j2me 流媒体
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Display;
import javax.microedition.media.Manager;
import javax.microedition.media.Player;
import javax.microedition.midlet.MIDlet;
public class StreamingMediaMIDlet extends MIDlet {
private Player player = null;
private Display display = Display.getDisplay(this);
private Alert alert = new Alert("Message");
public StreamingMediaMIDlet() {
try {
player = Manager.createPlayer("rtsp://www.y.com/a.ra");
player.realize();
} catch (Exception e) {
e.printStackTrace();
}
}
public void startApp() {
try {
player.start();
} catch (Exception e) {
e.printStackTrace();
}
alert.setString("Playing streaming radio");
display.setCurrent(alert);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
}
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代码如下：
1 String command = " cmd /c C:/Program Files/MySQL/MySQL Server 5.0/bin>mysqldump -h localhost -u root -p aijia > E:/aijia.dmp " ;
2 try {
3 Process process& ......
时间动态显示
1.方法一 用TimerTask
利用java.util.Timer和java.util.TimerTask来做动态更新，毕竟每次更新可以看作是计时1秒发生一次。
代码如下：
import java.awt.Dimension;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util ......
对于学习static我们先来看两个例子：
//Example 1 Tst.java，no main() method
package com.blogchina.qb2049;
public class Tst
{
static { System.out.println("111111"); }
}
运行结果为: 111111
Exception in thread "main" java.lang.NoSuchMethodError: main
同样的道理看第二 ......
1.计算某一月份的最大天数
Calendar time=Calendar.getInstance();
time.clear();
time.set(Calendar.YEAR,year);
time.set(Calendar.MONTH,i-1);//注意,Calendar对象默认一月为0
int day=time.getActualMaximum(Calendar.DAY_OF_MONTH);//本月份的天数 ......
