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Categories / Java / File Input Output

 

Use BufferedInputStream and BufferedOutputStream to copy byte array

import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; public class Main {   public static void main(String[] args) throws Exception {     String fromFileName = "from.txt";     String toFileName = "to.txt";     BufferedInputStream in = new BufferedInputStream(new FileInputStream(fromFileName));     BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(toFileName));     byte[] buff = new byte[32 * 1024];     int len;     while ((len = in.read(buff)) > 0)       out.write(buff, 0, len);     in.close();     out.close();   } }