private static boolean disjoint_ ( String scl ) { if ( scl . charAt ( 0 ) == ' ' && scl . charAt ( 1 ) == ' ' && scl . charAt ( 2 ) == ' ' && scl . charAt ( 3 ) == ' ' && scl . charAt ( 4 ) == ' ' && scl . charAt ( 5 ) == ' ' && scl . charAt ( 6 ) == ' ' && scl . charAt ( 7 ) == ' ' && scl . charAt ( 8 ) == ' ' ) return true ; return false ; }
Checks whether the scl string is the disjoint relation .