java系列：《java核心技术 卷1》学习笔记，chapter 11 调试技巧

Random random = new Random{
    public double nextDouble(){
        double result = nextDouble();
        Logger.getGlobal().info("nextDouble:" + result);
        return result;
    }
}

    捕获输出流
    java MyProg >log.txt
    捕获错误流
    java MyProg 2>log.txt
    同时捕获输出流和错误流
    java MyProg >&log.txt

Thread.setDefaultUncaughtExceptionHandler{
    new Thread.UncaughtExceptionHandler(){
        public void uncaughtException(Thread t, Throwable e){
            //save info to file
        }
    }
}