question: public static boolean isValidBedGraphLine ( String line ) { String [ ] bdg = line . split ( "\t" ) ; if ( bdg . length < 4 ) { return false ; } try { Integer . parseInt ( bdg [ 1 ] ) ; Integer . parseInt ( bdg [ 2 ] ) ; } catch ( NumberFormatException e ) { return false ; } return true ; }
target:  Return true if line looks like a valid bedgraph record  