Java byte array Pro

Read partial byte array using Byte Array Input Stream

import java.io.ByteArrayInputStream;

public class ReadPartialByteArray

 {

 public static void main(String[] args)

{

String str = "Byte Array InputStream Example";

byte[] bytes = str.getBytes();

ByteArrayInputStream bis = new ByteArrayInputStream(bytes, 5, 5);

int ch;

while ((ch = bis.read()) != -1)

{

System.out.print((char)ch);

    }

  }

}

Java String Buffer to Input Stream

import java.io.ByteArrayInputStream;

import java.io.InputStream;

public class StringBufferToInputStreamExample

 {

public static void main(String args[])

{

StringBuffer sbf = new StringBuffer("StringBuffer to InputStream Example");

byte[] bytes = sbf.toString().getBytes();

InputStream inputStream = new ByteArrayInputStream(bytes);           

System.out.println("StringBuffer converted to InputStream");

   }

}

Java Pushback Input Stream

import java.io.ByteArrayInputStream;

import java.io.IOException;

import java.io.PushbackInputStream;

public class JavaPushbackInputStreamExamples

{

 public static void main(String[] args)

{

String strExpression = "a = a++ + b;"; byte bytes[] = strExpression.getBytes();  ByteArrayInputStream bis = new ByteArrayInputStream(bytes); PushbackInputStream pis = new PushbackInputStream(bis);

int ch;

try

{

while( (ch = pis.read())!= -1)

{

if(ch == '+')

{

if( (ch = pis.read()) == '+')

{

System.out.print("Plus Plus");

}

else

{

pis.unread(ch);

System.out.print("+");

}

}

else

{

System.out.print((char)ch);

    }

  }

}

catch(IOException ioe)

{

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

    }

  }

}

Java String to Input Stream

import java.io.ByteArrayInputStream;

import java.io.InputStream;

public class JavaStringToInputStreamExample

{

public static void main(String args[])

{

String str1 = "Java convert String to InputStream Example";

byte[] bytes = str1.getBytes();

InputStream inputStream = new ByteArrayInputStream(bytes);

   }

}

Read boolean from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadBooleanFromFile

{

public static void main(String[] args)

{

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

try

{

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

boolean b = din.readBoolean();         

System.out.println("boolean : " + b);

din.close();   

}

catch(FileNotFoundException fe)

{

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

}

catch(IOException ioe)

{

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

    }

  }

}