添加代码

byhieg · byhieg · commit c85e114d208b · 2017-02-23T16:09:20.000+08:00
diff --git a/src/main/java/cn/byhieg/iotutorial/charsetstreamio/FileReaderExample.java b/src/main/java/cn/byhieg/iotutorial/charsetstreamio/FileReaderExample.java
@@ -0,0 +1,20 @@
+package cn.byhieg.iotutorial.charsetstreamio;
+
+import java.io.File;
+import java.io.FileReader;
+
+/**
+ * Created by shiqifeng on 2017/2/23.
+ * Mail byhieg@gmail.com
+ */
+public class FileReaderExample {
+
+    public void readFromFile() throws Exception{
+        try (FileReader reader = new FileReader("D:" + File.separator + "read_file.txt")) {
+            char[] chars = new char[1024];
+            while (reader.read(chars) != -1) {
+                System.out.println(chars);
+            }
+        }
+    }
+}
diff --git a/src/main/java/cn/byhieg/iotutorial/charsetstreamio/FileWriterExample.java b/src/main/java/cn/byhieg/iotutorial/charsetstreamio/FileWriterExample.java
@@ -0,0 +1,19 @@
+package cn.byhieg.iotutorial.charsetstreamio;
+
+import java.io.File;
+import java.io.FileWriter;
+
+/**
+ * Created by shiqifeng on 2017/2/23.
+ * Mail byhieg@gmail.com
+ */
+public class FileWriterExample {
+
+    public void writeToFile() throws Exception {
+        try (FileWriter writer = new FileWriter("D:" + File.separator + "write_file.txt")) {
+            for (int i = 0 ; i< 1000000;i++) {
+                writer.write("我是byhieg");
+            }
+        }
+    }
+}
diff --git a/src/main/java/cn/byhieg/iotutorial/charsetstreamio/OutputStreamWriterExample.java b/src/main/java/cn/byhieg/iotutorial/charsetstreamio/OutputStreamWriterExample.java
@@ -14,7 +14,7 @@ public class OutputStreamWriterExample {
     public void writeToFile() throws Exception{
         try (Writer writer = new OutputStreamWriter(new FileOutputStream("D:" + File.separator + "write_file.txt"))) {
             for (int i = 0 ; i < 10000;i++) {
-                writer.write(i + "");
+                writer.write("我是中国人" + "");
                 writer.write("\r\n");
             }
         }
diff --git a/src/test/java/cn/byhieg/iotutorialtest/FileReaderExampleTest.java b/src/test/java/cn/byhieg/iotutorialtest/FileReaderExampleTest.java
@@ -0,0 +1,15 @@
+package cn.byhieg.iotutorialtest;
+
+import cn.byhieg.iotutorial.charsetstreamio.FileReaderExample;
+import junit.framework.TestCase;
+
+/**
+ * Created by shiqifeng on 2017/2/23.
+ * Mail byhieg@gmail.com
+ */
+public class FileReaderExampleTest extends TestCase {
+    public void testReadFromFile() throws Exception {
+        new FileReaderExample().readFromFile();
+    }
+
+}
diff --git a/src/test/java/cn/byhieg/iotutorialtest/FileWriterExampleTest.java b/src/test/java/cn/byhieg/iotutorialtest/FileWriterExampleTest.java
@@ -0,0 +1,15 @@
+package cn.byhieg.iotutorialtest;
+
+import cn.byhieg.iotutorial.charsetstreamio.FileWriterExample;
+import junit.framework.TestCase;
+
+/**
+ * Created by shiqifeng on 2017/2/23.
+ * Mail byhieg@gmail.com
+ */
+public class FileWriterExampleTest extends TestCase {
+    public void testWriteToFile() throws Exception {
+        new FileWriterExample().writeToFile();
+    }
+
+}

Original file line number	Diff line number	Diff line change
`@@ -14,7 +14,7 @@ public class OutputStreamWriterExample {`
`14`	`14`	`public void writeToFile() throws Exception{`
`15`	`15`	`try (Writer writer = new OutputStreamWriter(new FileOutputStream("D:" + File.separator + "write_file.txt"))) {`
`16`	`16`	`for (int i = 0 ; i < 10000;i++) {`
`17`		`- writer.write(i + "");`
	`17`	`+ writer.write("我是中国人" + "");`
`18`	`18`	`writer.write("\r\n");`
`19`	`19`	`}`
`20`	`20`	`}`