Nature Abstract

看到一道java面试题， http://www.iteye.com/topic/644423 public static void main(String[] args) {  int j = 0;  for(int i = 0; i j = j++;  }  System.out.println(j);  }  很多人都会毫不犹豫说是100吧!告诉你,答案是0

读文件注意： BufferedReader才有readLine(),Reader只有read()while( (s=in.readLine())!=null )in.close()不能在finally里面，因为close会抛IOExceptionreadLine()的结果是不带有\n的，必要时要加上\n

Classloading and initialization in Java Understanding of when a class is loaded and initialized in JVM is one of the fundamental concept of Java programming language. Thanks to Java language specific