Using in java Buffered Pro

Read File in String Using Java Buffered Input Stream

import java.io.*;

public class ReadFileInToString

{

public static void main(String[] args)

{

File file = new File("C://FileIO//ReadFile.txt");

BufferedInputStream bin = null;

try

{

FileInputStream fin = new FileInputStream(file);

bin = new BufferedInputStream(fin);

byte[] contents = new byte[1024];

int bytesRead=0;

String strFileContents;

while( (bytesRead = bin.read(contents)) != -1)

{

strFileContents = new String(contents, 0, bytesRead);

System.out.print(strFileContents);

   }

}

catch(FileNotFoundException e)

{

System.out.println("File not found" + e);

}

catch(IOException ioe)

{

System.out.println("Exception while reading the file "+ ioe);

}

finally

{

try

{

if(bin != null)

bin.close();

}

catch(IOException ioe)

{

System.out.println("Error while closing the stream :"+ ioe);

         }

     }

   }

           }

Extract Zip File With Subdirectories Using Command Line Argument

import java.io.BufferedInputStream;

import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.Enumeration;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;

import java.util.zip.ZipInputStream;

public class ExtractFileSubDirectories

{

public static void main(String args[])

{

String strZipFile = args[0];

if(strZipFile == null || strZipFile.equals(""))

{

System.out.println("Invalid source file");

System.exit(0);

}

unzip(strZipFile);

System.out.println("Zip file extracted!");

}

private static void unzip(String strZipFile)

{

try

{

File fSourceZip = new File(strZipFile);

String zipPath = strZipFile.substring(0, strZipFile.length()-4);

File temp = new File(zipPath);

temp.mkdir();

System.out.println(zipPath + " created");

ZipFile zipFile = new ZipFile(fSourceZip);

Enumeration e = zipFile.entries();

while(e.hasMoreElements())

{

ZipEntry entry = (ZipEntry)e.nextElement();

File destinationFilePath = new File(zipPath,entry.getName());

destinationFilePath.getParentFile().mkdirs();

if(entry.isDirectory())

{

continue;

}

else

{

System.out.println("Extracting " + destinationFilePath);

BufferedInputStream bis = new BufferedInputStream(zipFile

.getInputStream(entry));

int b;

byte buffer[] = new byte[1024];

FileOutputStream fos = new FileOutputStream(destinationFilePath);

BufferedOutputStream bos = new BufferedOutputStream(fos,1024);

while ((b = bis.read(buffer, 0, 1024)) != -1) 

{

bos.write(buffer, 0, b);

}

bos.flush();

bos.close();

bis.close();

    }

  }

}

catch(IOException ioe)

{

System.out.println("IOError :" + ioe);

       }

              }

}

Read line of characters from console using InputStream

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class ReadLineFromConsoleExample

{

public static void main(String[] args)

{

BufferedReader br =

new BufferedReader(new InputStreamReader(System.in));

                  

String strLine = null;

System.out.println("Reading line of characters from console");

System.out.println("Enter exit to quit");

try

{

while( (strLine = br.readLine()) != null)

{

if(strLine.equals("exit"))

break;

System.out.println("Line entered : "  + strLine);

}

br.close();                    

}

catch(Exception e)

{

System.out.println("Error while reading line from console : " + e);

     }

   }

}