s-day09-JDK9的异常处理改进

s-day09/src/com/inmind/io_exception05/Jdk9Demo16.java

@@ -0,0 +1,29 @@
+package com.inmind.io_exception05;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+/*
+JDK9异常的处理方式(了解)
+ */
+public class Jdk9Demo16 {
+    public static void main(String[] args) throws FileNotFoundException {
+        FileInputStream fis = new FileInputStream("3.jpg");
+        FileOutputStream fos = new FileOutputStream("4.jpg");
+        try(fis;fos) {//这种做法的意义：流的创建不限定与try()中来执行，可以通过传参来传递
+            //文件复制（边读边写）
+            byte[] bytes = new byte[1024];
+            int len;
+
+            while ((len = fis.read(bytes)) != -1) {
+                fos.write(bytes, 0, len);
+            }
+        }catch (IOException e){
+            e.printStackTrace();
+        }
+        System.out.println("程序结束");
+    }
+
+}