Java Zip File Pro

Extract First File From Zip File Example

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public class ExtractFileFromZipFile

{

 public static void main(String args[])

{

String sourceZipFile = "C:/FileIO/sourceFile.zip";

try

{

FileInputStream fin = new FileInputStream(sourceZipFile);ZipInputStream zin = new ZipInputStream(fin);ZipEntry entry = zin.getNextEntry();  OutputStream os = new FileOutputStream("c:/extractedFile.css");

byte[] buffer = new byte[1024];

int length;

while( (length = zin.read(buffer)) > 0)

{

os.write(buffer, 0, length);

}                       

os.close(); zin.close();

System.out.println("File Extracted from zip file");

}

catch(IOException e)

{

System.out.println("IOException :" + e);

     }                 

  }

           }

Read int from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadIntFromFile

{

public static void main(String[] args)

{

String strFilePath = "C://FileIO//readInt.txt";

try

{   FileInputStream fin = new FileInputStream(strFilePath);DataInputStream din = new DataInputStream(fin);

int i = din.readInt();

System.out.println("int : " + i);

din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

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

     }

   }

}

Read byte array from file using DataInputStream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadByteArrayFromFile

{

public static void main(String[] args)

{

 String strFilePath = "C://FileIO//readByteArray.txt";

 try

{

FileInputStream fin = new FileInputStream(strFilePath);

DataInputStream din = new DataInputStream(fin);

byte b[] = new byte[10];

din.read(b);

din.close();     

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

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

     }

   }

}

Read short from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadShortFromFile

 {

public static void main(String[] args)

{

  

String strFilePath = "C://FileIO//readShort.txt";

try

{

FileInputStream fin = new FileInputStream(strFilePath);

      DataInputStream din = new DataInputStream(fin);

                short s = din.readShort();

               System.out.println("short : " + s);

               din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

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

    }

   }

}