checking an integer to see if it contains a zero

Question

Given an integer, how could you check if it contains a 0, using Java?

1 = Good
2 = Good
...
9 = Good
10 = BAD!
101 = BAD!
1026 = BAD!
1111 = Good

How c

Answer 1

You can convert it to a string and check if it contains the char "0".

int number = 101;
if( ( "" + number ).contains( "0" ) ) {
  System.out.println( "contains the digit 0" );
}