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ReadWriteFile.java
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ReadWriteFile.java
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package com;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class ReadWriteFile {
/**
* author: william
*
* @param args
*/
public static void main(String[] args) {
try {
writeFile();
} catch (IOException e) {
e.printStackTrace();
}
try {
readFile();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 写文件到D盘,并写入数据。
* @throws IOException
*/
public static void writeFile() throws IOException {
String str = "this is a test file...";
OutputStream os = null;
os = new FileOutputStream("d:\\test.txt");
os.write(str.getBytes());
os.close();
}
/**
* 读取文件中的内容。
* @throws IOException
*/
public static void readFile() throws IOException {
InputStream is = null;
try {
is = new FileInputStream("d:\\test.txt");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
byte bs[] = new byte[is.available()];
is.read(bs);
System.out.println(new String(bs));
is.close();
}
}