6-4eg.txt

清华大学第二版

例6-4
public void connectMe(String servename) throws ServerTimedOutException {
	int sucess;
	int portToConnect = 80;
	success = open(serveName, portToConnect);
	if (success == -1) {
		throw new ServerTimedOutException();
	}
}
使用try语句可捕获该异常：
public void findServer (){
	...
	try {
	connectMe(defaultServer);
	} catch(ServerTimedOutException e) {
		g.drawString("Server timed out, trying alternate", 5, 5);
		try {
			connectMe(alternateServer);
		}catch(ServerTimedOutException e1){
			g.drawString("No server currently available", 5, 5);
		}
	}
	...
}