1.JFrame类1.1 JFrame类在javax.swing 包中——主要提供各种组件(窗口/按钮/文本框)，在Java中还提供了另外2个做GUI开发的包。java.awt 包 – 主要提供字体/布局管理器，java.awt.event 包 – 事件处理，后台功能的实现。顶层容器值得是容纳其他容器的容器组件，包括JFrame类，JWindows类，JDialog类，JApplet等。Swing

尝试这个代码：你的互联网丢失类的broadcastreceiver类：public class InternetLostReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {context.sendBroadcast(new Intent("INTERNE

PHP-ML - Machine Learning library for PHPFresh approach to Machine Learning in PHP. Algorithms, Cross Validation, Neural Network, Preprocessing, Feature Extraction and much more in one library.PHP-ML