Adjectives as Attributes 

Adjective Declension after Definite Article
Singular
masculine		 Singular
neuter		 Singular
feminine		   Plural 
Nominative e e e en
Accusative en e e en
Dative en en en en
Genitive en en en en

Adjective Declension after Indefinite Article
Singular
masculine		 Singular
neuter		 Singular
feminine		   Plural 
Nominative er es e -
Accusative en es e -
Dative en en en -
Genitive en en en -

Adjective Declension after Zero Article
Singular
masculine		 Singular
neuter		 Singular
feminine		   Plural 
Nominative er es e e
Accusative en es e e
Dative em em er en
Genitive en en er er

Special Forms
Adjectives ending with -er "e" is omitted sauer die saure Sahne
Adjectives ending with -el "e" is omitted dunkel der dunkle Wald
Adjective "hoch" "c" is omitted hoch das hohe Haus