处理流_转换流(字符流)
public class IOStreamReaderAndWriter {
public static void main(String[] args) {
InputStreamReader inputStreamReader = null;
try {
FileInputStream fileInputStream = new FileInputStream("基础语法\\a.txt");
inputStreamReader = new InputStreamReader(fileInputStream,"UTF-8");
char[] cbuf = new char[20];
int len;
while ((len = inputStreamReader.read(cbuf)) != -1){
String string = new String(cbuf,0,len);
System.out.println(string);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (inputStreamReader != null)
inputStreamReader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
OutputStreamWriter:将Writer转换为OutputStream
public class IOStreamReaderAndWriter {
public static void main(String[] args) {
InputStreamReader inputStreamReader = null;
OutputStreamWriter outputStreamWriter = null;
try {
File file1 = new File("基础语法\\a.txt");
File file2 = new File("基础语法\\gbk_a.txt");
FileInputStream fileInputStream = new FileInputStream(file1);
FileOutputStream fileOutputStream = new FileOutputStream(file2);
inputStreamReader = new InputStreamReader(fileInputStream,"utf-8");
outputStreamWriter = new OutputStreamWriter(fileOutputStream,"gbk");
char[] cbuf = new char[20];
int len;
while ((len = inputStreamReader.read(cbuf)) != -1){
outputStreamWriter.write(cbuf,0,len);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (inputStreamReader != null)
inputStreamReader.close();
} catch (IOException e) {
e.printStackTrace();
}
try {
if (outputStreamWriter != null)
outputStreamWriter.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
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