question: private static long longMultiplyPowerTen ( long val , int n ) { if ( val == 0 || n <= 0 ) return val ; long [ ] tab = LONG_TEN_POWERS_TABLE ; long [ ] bounds = THRESHOLDS_TABLE ; if ( n < tab . length && n < bounds . length ) { long tenpower = tab [ n ] ; if ( val == 1 ) return tenpower ; if ( Math . abs ( val ) <= bounds [ n ] ) return val * tenpower ; } return INFLATED ; }
target:  Compute val * 10 ^ n; return this product if it is representable as a long, INFLATED otherwise.