Check a large number is divisible by 16 or not | Java program to find if a number is divisible by 16 or not ; Function to find that number divisible by 16 or not ; Empty string ; If there is double digit ; If there is triple digit ; If number formed by last four digits is divisible by 16. ; Driver code
import java . io . * ; class GFG { static boolean check ( String str ) { int n = str . length ( ) ; if ( n == 0 && n == 1 ) return false ; if ( n == 2 ) return ( ( ( str . charAt ( n - 2 ) - '0' ) * 10 + ( str . charAt ( n - 1 ) - '0' ) ) % 16 == 0 ) ; if ( n == 3 ) return ( ( ( str . charAt ( n - 3 ) - '0' ) * 100 + ( str . charAt ( n - 2 ) - '0' ) * 10 + ( str . charAt ( n - 1 ) - '0' ) ) % 16 == 0 ) ; int last = str . charAt ( n - 1 ) - '0' ; int second_last = str . charAt ( n - 2 ) - '0' ; int third_last = str . charAt ( n - 3 ) - '0' ; int fourth_last = str . charAt ( n - 4 ) - '0' ; return ( ( fourth_last * 1000 + third_last * 100 + second_last * 10 + last ) % 16 == 0 ) ; } public static void main ( String args [ ] ) { String str = "769528" ; if ( check ( str ) ) System . out . println ( " Yes " ) ; else System . out . println ( " No ▁ " ) ; } }