Java tutorial
//package com.java2s; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import android.content.Context; public class Main { public static void copyToMemory(Context context, String srcFilePath, String dictFileName) throws IOException { File srcFile = new File(srcFilePath); if (!srcFile.exists() || srcFile.isDirectory()) { return; } BufferedInputStream inBufferedInputStream = new BufferedInputStream(new FileInputStream(srcFile)); FileOutputStream fos = context.openFileOutput(dictFileName, 0); BufferedOutputStream bos = new BufferedOutputStream(fos); byte[] b = new byte[1024 * 4]; int len; while ((len = inBufferedInputStream.read(b)) != -1) { bos.write(b, 0, len); bos.flush(); } inBufferedInputStream.close(); bos.close(); } }