import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class Copy{

public static void main(String[] args) {

if(args.length != 2){

System.err.println("usage: java Copy srcFile srcFile");

return;

}

// ARM, Java added automatic resource management feature implementation in below form.

try(FileInputStream fis = new FileInputStream(args[0]);

FileOutputStream fos = new FileOutputStream(args[1])){

// resource usage block, you can follow it with catch and/or finally block.

int b;

while((b=fis.read())!=-1){

fos.write(b);

}

}catch(IOException ioe){

ioe.printStackTrace();

};

// No resource release tedious handle any more:)

}

}