文件输入
package com.mtlk.wd;
import java.io.FileInputStream;
import java.io.IOException;
public class InputDemo {
public static void main(String[] args) throws IOException{
FileInputStream fis = new FileInputStream("E:/1.txt");
byte[] context = new byte[fis.available()];
fis.read(context);
String s = new String(context);
System.out.println(s);
}
}
文件输出
package com.mtlk.wd;
import java.io.FileOutputStream;
import java.io.IOException;
public class OutputDemo {
public static void main(String[] args) throws IOException{
String context = "你好啊";
FileOutputStream fos = new FileOutputStream("E:/2.txt");
fos.write(context.getBytes());
fos.flush();
fos.close();
}
}
文件复制
package com.mtlk.wd;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyDemo {
public static void main(String[] args) throws IOException{
FileInputStream fis = new FileInputStream("E:/1.txt");
byte[] context = new byte[fis.available()];
fis.read(context);
FileOutputStream fos = new FileOutputStream("E:/3.txt");
fos.write(context);
fos.flush();
fos.close();
}
}
