Java tutorial
//package com.java2s; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; public class Main { /** * Reads content of the file into string buffer * @param tempFile instance of java.io.File that points to an actual file on the file system. * @return instance of java.lang.StringBuffer */ public static StringBuffer readFromFile(File tempFile) { StringBuffer stringBuffer = new StringBuffer(); FileInputStream is = null; try { is = new FileInputStream(tempFile); byte[] buffer = new byte[1024]; int count = 0; while ((count = is.read(buffer)) != -1) { stringBuffer.append(new String(buffer, 0, count)); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (is != null) { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } } return stringBuffer; } }