auto commit

notes/Java IO.md

@@ -60,15 +60,18 @@ public static void listAllFiles(File dir) {
 
 ```java
 public static void copyFile(String src, String dist) throws IOException {
+
     FileInputStream in = new FileInputStream(src);
     FileOutputStream out = new FileOutputStream(dist);
     byte[] buffer = new byte[20 * 1024];
+
     // read() 最多读取 buffer.length 个字节
     // 返回的是实际读取的个数
     // 返回 -1 的时候表示读到 eof，即文件尾
     while (in.read(buffer, 0, buffer.length) != -1) {
         out.write(buffer);
     }
+
     in.close();
     out.close();
 }
@@ -165,20 +168,17 @@ public static void main(String[] args) throws IOException, ClassNotFoundExceptio
     System.out.println(a2);
 }
 
-private static class A implements Serializable
-{
+private static class A implements Serializable {
     private int x;
     private String y;
 
-    A(int x, String y)
-    {
+    A(int x, String y) {
         this.x = x;
         this.y = y;
     }
 
     @Override
-    public String toString()
-    {
+    public String toString() {
         return "x = " + x + "  " + "y = " + y;
     }
 }