Merge branch 'master' of https://github.com/byhieg/JavaTutorial

src/main/java/cn/byhieg/algorithmtutorial/Sort.java

@@ -169,14 +169,14 @@ public int partition(int[] nums, int low, int high) {
         int x = nums[i];
         while (i < j) {
             //从右向左找到nums[j]小于x的元素
-            while (i < j && nums[j] > x) j--;
+            while (i < j && nums[j] >= x) j--;
             if (i < j) {
                 nums[i] = nums[j];
                 i++;
             }
 
             //从左向右找到nums[i]大于x的元素
-            while (i < j && nums[i] < x) i++;
+            while (i < j && nums[i] <= x) i++;
             if (i < j) {
                 nums[j] = nums[i];
                 j--;

src/main/java/cn/byhieg/niotutorial/NioTest.java

@@ -0,0 +1,35 @@
+package cn.byhieg.niotutorial;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel;
+
+/**
+ * Created by shiqifeng on 2017/4/10.
+ * Mail byhieg@gmail.com
+ */
+public class NioTest {
+
+    public static void main(String[] args) throws IOException {
+        String s = File.separator;
+        RandomAccessFile aFile = new RandomAccessFile("D:" + s + "read_file.txt","rw");
+        FileChannel inChannel = aFile.getChannel();
+
+        ByteBuffer buf = ByteBuffer.allocate(48);
+        int bytesRead = inChannel.read(buf);
+        while (bytesRead != -1) {
+            buf.flip();
+            while (buf.hasRemaining()) {
+                System.out.print((char) buf.get());
+            }
+
+            buf.clear();
+            bytesRead = inChannel.read(buf);
+        }
+
+        aFile.close();
+    }
+}

src/main/java/cn/byhieg/niotutorial/read_file.txt

@@ -0,0 +1,5 @@
+I don't know what I do now is right, those are wrong, and when I finally die then I know these.
+So what  I can do now is to try to do everything well, and then wait to die .
+Sometimes I can be very happy to talk to everyone, can be very presumptuous, but no one knows,
+it is but very deliberately camouflage, camouflage; I can make him very happy very happy,
+but couldn't find the source of happiness, just giggle.