public static boolean deleteDir(File dir) {
if (dir.isDirectory()) {
String[] children = dir.list();
for (int i=0; i<children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
// The directory is now empty so delete it
return dir.delete();
}
private String readFile(String pathname) throws IOException {
StringBuilder stringBuilder = new StringBuilder();
Scanner scanner = new Scanner(new File(pathname));
try {
while(scanner.hasNextLine()) {
stringBuilder.append(scanner.nextLine() + "\n");
}
} finally {
scanner.close();
}
return stringBuilder.toString();
}
private void copyDirectory(File sourceLocation , File targetLocation) throws IOException {
if (sourceLocation.isDirectory()) {
if (!targetLocation.exists()) {
targetLocation.mkdir();
}
String[] children = sourceLocation.list();
for (int i=0; i<children.length; i++) {
copyDirectory(new File(sourceLocation, children[i]),
new File(targetLocation, children[i]));
}
} else {
InputStream in = new FileInputStream(sourceLocation);
OutputStream out = new FileOutputStream(targetLocation);
// Copy the bits from instream to outstream
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
}
File multiUserFile = new File("test.txt");
String line = "";
try {
BufferedReader ficTexte = new BufferedReader(new FileReader(multiUserFile));
line = ficTexte.readLine();
}
catch (IOException e) {
e.printStackTrace();
}
File multiUserFile = new File(filepath);
try {
BufferedWriter ficTexte = new BufferedWriter(new FileWriter(multiUserFile));
ficTexte.write("singlepath=false"+System.getProperty("line.separator"));
ficTexte.write("multiuser=false"+System.getProperty("line.separator"));
ficTexte.close();
}
catch (IOException e) {
e.printStackTrace();
}
import java.io.File;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
*
*/
/**
* @author hariharan_kumar
*
*/
public class Dfs {
List<String> directoryLists;
/**
*
*/
public Dfs() {
directoryLists = new ArrayList<String>();
}
/**
* @param args
*/
public static void main(String[] args) {
Dfs df = new Dfs();
df.iterate("G:/jbossTest");
df.displayDirList();
}
public void iterate(String baseDir)
{
File folder_and_files = new File(baseDir);
File[] file_array = folder_and_files.listFiles();
for(int i = 0;i < file_array.length;i++)
{
if(file_array[i].isDirectory())
{
//System.out.println("Directory is : " + file_array[i].getName());
directoryLists.add(file_array[i].getAbsolutePath());
iterate(file_array[i].getAbsolutePath());
}
else if (file_array[i].isFile())
{
//System.out.println("File is : " + file_array[i].getAbsolutePath());
}
else if(file_array.length == i)
{
return;
}
}
}
public void displayDirList()
{
Iterator<String> i = directoryLists.iterator();
while(i.hasNext())
{
System.out.println(i.next());
}
}
}
import java.util.Vector;
import java.io.*;
public class FileUtility {
public static String[] readLinesFromFile(String fileName) {
Vector<String> lines = new Vector<String>();
DataInputStream dis = null;
try {
FileInputStream fis = new FileInputStream(new File(fileName));
dis = new DataInputStream(fis);
BufferedReader br = new BufferedReader(new InputStreamReader(dis));
String line;
while ((line = br.readLine()) != null) {
lines.add(line);
}
dis.close();
} catch (IOException e) {
} catch (Exception e) {
} finally {
if (dis != null) {
try {
dis.close();
} catch (Exception e) {
}
}
}
String[] data = new String[lines.size()];
for (int n = 0; n < lines.size(); n++) {
data[n] = lines.elementAt(n);
}
return data;
}
public static boolean writeLinesToFile(String fileName, String[] lines) {
return writeLinesToFile(fileName, lines, false);
}
public static boolean writeLinesToFile(String fileName, String[] lines,
boolean append) {
DataOutputStream dos = null;
boolean success = true;
try {
FileOutputStream fos = new FileOutputStream(new File(fileName), true);
dos = new DataOutputStream(fos);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(dos));
for (int n = 0; n < lines.length; n++) {
bw.write(lines[n]);
bw.newLine();
bw.flush();
}
} catch (IOException e) {
success = false;
} catch (Exception e) {
success = false;
} finally {
if (dos != null) {
try {
dos.close();
} catch (Exception e) {
}
}
}
return (success) ? true : false;
}
public static void main(String[] args) {
String fileName = "yourFileHere";
String[] data = readLinesFromFile(fileName);
for (int i = 0; i < data.length; i++) {
System.out.println(data[i]);
}
if (writeLinesToFile(fileName, new String[] { "x", "y" }, true)) {
System.out.println("Write success");
}
}
}
import java.net.*;
import java.io.*;
public class URLReader {
private String url;
public URLReader(String url) {
this.url = url;
}
public String read() throws Exception {
StringBuffer sb = new StringBuffer();
URL u = new URL(this.url);
BufferedReader in = new BufferedReader(
new InputStreamReader(
u.openStream()
)
);
String line;
while ((line = in.readLine()) != null) {
sb.append(line);
}
return sb.toString();
}
public static void main(String[] args) {
URLReader u = new URLReader("http://mscribellito.com");
try {
System.out.println(u.read());
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
