为什么下面代码不能识别汉字？（关于输入输出流）

[zhshjin]

import java.util.*;
import java.io.*;

public class Concatenate {
public static void main(String[] args) throws IOException {
ListOfFiles mylist = new ListOfFiles(args);
File outputFile = new File("result.txt");

SequenceInputStream s = new SequenceInputStream(mylist);
FileWriter out = new FileWriter(outputFile);
int c;

while ((c = s.read()) != -1)
out.write(c);

s.close();
out.close();
}
}


class ListOfFiles implements Enumeration {

private String[] listOfFiles;
private int current = 0;

public ListOfFiles(String[] listOfFiles) {
this.listOfFiles = listOfFiles;
}

public boolean hasMoreElements() {
if (current < listOfFiles.length)
return true;
else
return false;
}

public Object nextElement() {
InputStream in = null;

if (!hasMoreElements())
throw new NoSuchElementException("No more files.");
else {
String nextElement = listOfFiles[current];
current++;
try {
in = new FileInputStream(nextElement);
} catch (FileNotFoundException e) {
System.err.println("ListOfFiles: Can't open " + nextElement);
}
}
return in;
}
}

程序是把两个文本的内容连接到一个新建的文本里面
执行的时候
java Concatenate 第一个文件 第二个文件
如果是英文还可以，但是如果是汉字，它就在生成的result.txt中显示乱码
还有下面另外一个几乎一样的代码（两个不同的地方，都已经标出），却能够在系统中显示汉字，这是为什么？是java本身的问题吗？还是编码方式变了？请高手帮忙解答，小弟不胜感激！
import java.util.*;
import java.io.*;

public class Concatenate {
public static void main(String[] args) throws IOException {
ListOfFiles mylist = new ListOfFiles(args);
File outputFile = new File("result.txt");

SequenceInputStream s = new SequenceInputStream(mylist);
FileWriter out = new FileWriter(outputFile);
int c;

while ((c = s.read()) != -1)
System.out.write(c); // 不同之处

s.close();
//out.close(); // 不同之处
}
}


class ListOfFiles implements Enumeration {

private String[] listOfFiles;
private int current = 0;

public ListOfFiles(String[] listOfFiles) {
this.listOfFiles = listOfFiles;
}

public boolean hasMoreElements() {
if (current < listOfFiles.length)
return true;
else
return false;
}

public Object nextElement() {
InputStream in = null;

if (!hasMoreElements())
throw new NoSuchElementException("No more files.");
else {
String nextElement = listOfFiles[current];
current++;
try {
in = new FileInputStream(nextElement);
} catch (FileNotFoundException e) {
System.err.println("ListOfFiles: Can't open " + nextElement);
}
}
return in;
}
}

[loveyousomuch]

inputStream和outputStream是用来处理字节码的流，不能用来处理汉字，
Reader和Writer是用来处理unicede码的，可以处理汉字

[imagex]

File f = new File("E:\\eclipse\\workspace\\box\\Data\\2003-3-7-100.inc");

InputStreamReader read = new InputStreamReader (new FileInputStream(f),"UTF-8");

BufferedReader reader=new BufferedReader(read);

String line;

while ((line = reader.readLine()) != null) {

System.out.println(line);

}
这样可以读取有中文的文件

[prosong]

InputStream 的read读取到的是 字节
Write的write方法写入的是 字符
在上面的例子中两者不一致所以出现乱码,
下面的Sytem.out是OutputStream写入的是字节,所以不出现乱码
更改源程序的之一使其一致即可

示例更改如下:
import java.util.*;
import java.io.*;

public class Concatenate {
public static void main(String[] args) throws IOException {
ListOfFiles mylist = new ListOfFiles(args);
File outputFile = new File("result.txt");

SequenceInputStream s = new SequenceInputStream(mylist);
//FileWriter out = new FileWriter(outputFile);
FileOutputStream out = new FileOutputStream(outputFile); // Modified, using OutputStream to write byte
int c;

while ((c = s.read()) != -1)
out.write((byte)c); // Modified, write a byte

s.close();
out.close();
}
}


class ListOfFiles implements Enumeration {

private String[] listOfFiles;
private int current = 0;

public ListOfFiles(String[] listOfFiles) {
this.listOfFiles = listOfFiles;
}

public boolean hasMoreElements() {
if (current < listOfFiles.length)
return true;
else
return false;
}

public Object nextElement() {
InputStream in = null;

if (!hasMoreElements())
throw new NoSuchElementException("No more files.");
else {
String nextElement = listOfFiles[current];
current++;
try {
in = new FileInputStream(nextElement);
} catch (FileNotFoundException e) {
System.err.println("ListOfFiles: Can't open " + nextElement);
}
}
return in;
}
}