朱同学的博客public static final InputStream in = null; public static final PrintStream out = null; 值是null也就算了竟然还被final修饰不可修改,那我们调用的System.out.println()方法算什么呢? 实际上在System类的开头...
一二¬的博客 public class FileReadExample { public static void main(String[] args) { InputStream is = null; try { // 打开文件输入流 is = new FileInputStream("D:\\4072\\1\\1.txt"); // 获取文件的字节数 byte[] b = ...