static boolean canBePicked ( int digits [ ] , int num ) {
  int copyDigits [ ] = digits . clone ( ) ;
  while ( num > 0 ) {
    int digit = num % 10 ;
    if ( copyDigits [ digit ] == 0 ) return false ;
    else copyDigits [ digit ] -- ;
    num /= 10 ;
  }
  return true ;
}

static boolean canBePicked ( int digits [ ] , int num ) { int copyDigits [ ] = digits . clone ( ) ; while ( num > 0 ) { int digit = num % 10 ; if ( copyDigits [ digit ] == 0 ) return false ; else copyDigits [ digit ] -- ; num /= 10 ; } return true ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) consequence: (return_statement (false)) alternative: (expression_statement (update_expression (array_access array: (identifier) index: (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))) (return_statement (true))))