Java tutorial
//package com.java2s; import android.support.annotation.Nullable; import android.util.Log; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; public class Main { private static final String TAG = "FetchDataHelper"; private static void logErrorStream(@Nullable InputStream errorStream) throws IOException { if (errorStream == null) { return; } StringBuilder builder = new StringBuilder(); BufferedReader reader = new BufferedReader(new InputStreamReader(errorStream, "UTF-8")); try { String result; while ((result = reader.readLine()) != null) { builder.append(result); } } finally { reader.close(); } Log.w(TAG, builder.toString()); } }