Schreiben Sie eine Ableitung Random2 der Standardklasse Random. Random2 soll Random um die folgenden Methoden ergänzen.

1. nextByte()
   Returns the next pseudorandom byte value from this random number generator's sequence.
   
   
2. nextByte(byte b)
   Returns a pseudorandom byte value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
   
   
3. nextShort()
   Returns the next pseudorandom short value from this random number generator's sequence.
   
   
4. nextShort(short s)
   Returns a pseudorandom short value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
   
   
5. nextLong(long lo)
   Returns a pseudorandom long value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.
   
   
6. nextChar()
   Returns a pseudorandom char value between 'a' (inclusive) and 'z' (inclusive), drawn from this random number generator's sequence.

Die Klasse Random2 soll außerdem die gleichen Konstruktoren anbieten wie Random.