Java tutorial
//package com.java2s; import android.os.Environment; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; public class Main { public static String readFromSD(String fileName) throws Exception { File file = new File(Environment.getExternalStorageDirectory(), fileName); FileReader fr = new FileReader(file); BufferedReader br = new BufferedReader(fr); String line = null; StringBuilder sb = new StringBuilder(); while ((line = br.readLine()) != null) { sb.append(line); } return sb.toString(); } }