public void setRootDirEntryCount(int v) throws IllegalArgumentException {
        if (v < 0) throw new IllegalArgumentException();
        if (v == getRootDirEntryCount()) return;
        
        set16(ROOT_DIR_ENTRIES_OFFSET, v);
    }
public void setRootDirEntryCount ( int v ) throws IllegalArgumentException { if ( v < 0 ) throw new IllegalArgumentException ( ) ; if ( v == getRootDirEntryCount ( ) ) return ; set16 ( ROOT_DIR_ENTRIES_OFFSET , v ) ; }
Sets the number of entries in the root directory

@param v the new number of entries in the root directory
@throws IllegalArgumentException for negative values