代码演示java复制文件

下面代码演示如何复制文件。

package cn.outofmemory.examples;

import java.io.File;
import java.io.IOException;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class FileUtil {

public void copyFile(String fromFile, String toFile) {

FileInputStream fin = null;
FileOutputStream fout = null;

try {

//检查文件是否存在
File file = new File(fromFile);
if (!file.exists() || !file.isFile()) {
System.out.println("Could not perform operation, file doesn\'t exist");
return;
}

fin = new FileInputStream(file);
fout = new FileOutputStream(toFile);

//从fin读入，然后写入到fout
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = fin.read(buffer)) > 0) {
fout.write(buffer, 0, bytesRead);
}
}
catch (IOException ioe) {
ioe.printStackTrace();
}
finally {
try {
if (fin != null)
fin.close();
if (fout != null)
fout.close();
}
catch (IOException ioe) {
ioe.printStackTrace();
}
}
}

public static void main(String[] args) {
FileUtil fileutil = new FileUtil();
fileutil.copyFile("C:\\\\temp\\\\myfile1.txt",
"C:\\\\temp\\\\myfile2.txt");
}
}