JAVA文件操作類，方便讀寫小文件

　　package cnedudlutwisdom;

　　import javaio*;

　　import javautil*;

　　public class FileAccess {

　　public static String readAllText(String fileName) throws IOException {

　　StringBuffer sb = new StringBuffer();

　　char[] buf = new char[];

　　BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));

　　while(brread(buf) != ) {

　　sbappend(buf);

　　}

　　return sbtoString();

　　}

　　public static String readAllText(String fileName String encode) throws IOException {

　　StringBuffer sb = new StringBuffer();

　　char[] buf = new char[];

　　BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName) encode));

　　while(brread(buf) != ) {

　　sbappend(buf);

　　}

　　return sbtoString();

　　}

　　public static String[] readAllLines(String fileName) throws IOException {

　　ArrayList<String> lines = new ArrayList<String>();

　　String s;

　　BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));

　　while ((s = brreadLine()) != null)

　　linesadd(s);

　　brclose();

　　return linestoArray(new String[]{});

　　}

　　public static String[] readAllLines(String fileName String encode) throws IOException {

　　ArrayList<String> lines = new ArrayList<String>();

　　String s;

　　BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName) encode));

　　while ((s = brreadLine()) != null)

　　linesadd(s);

　　brclose();

　　return linestoArray(new String[]{});

　　}

　　public static void writeAllText(String fileName String text) throws FileNotFoundException {

　　PrintWriter pw = new PrintWriter(new FileOutputStream(fileName));

　　pwprint(text);

　　pwflush();

　　pwclose();

　　}

　　public static void writeAllText(String fileName String encode String text) throws FileNotFoundException UnsupportedEncodingException {

　　PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(fileName) encode));

　　pwprint(text);

　　pwflush();

　　pwclose();

　　}

　　public static void writeAllLines(String fileName String[] lines) throws FileNotFoundException {

　　PrintWriter pw = new PrintWriter(new FileOutputStream(fileName));

　　for(String s : lines)

　　pwprintln(s);

　　pwflush();

　　pwclose();

　　}

　　public static void writeAllLines(String fileName String encode String[] lines) throws FileNotFoundException UnsupportedEncodingException {

　　PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(fileName) encode));

　　for(String s : lines)

　　pwprintln(s);

　　pwflush();

　　pwclose();

　　}

　　public static void writeObject(String fileName Serializable ob) throws IOException {

　　ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(fileName));

　　ooswriteObject(ob);

　　oosflush();

　　oosclose();

　　}

　　public static Object readObject(String fileName) throws IOException ClassNotFoundException {

　　ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fileName));

　　Object ob = oisreadObject();

　　oisclose();

　　return ob;

　　}

　　}

From:http://tw.wingwit.com/Article/program/Java/hx/201311/25872.html