public static int ABCNumber ( char a ) {
  int num = - 1 ;
  char [ ] abc = "abcdefghijklmnopqrstuvwxyz" . toCharArray ( ) ;
  for ( int n = 0 ;
  n < 26 ;
  n ++ ) {
    if ( a == abc [ n ] ) num = n ;
  }
  return num ;
}

public static int ABCNumber ( char a ) { int num = - 1 ; char [ ] abc = " abcdefghijklmnopqrstuvwxyz " . toCharArray ( ) ; for ( int n = 0 ; n < 26 ; n ++ ) { if ( a == abc [ n ] ) num = n ; } return num ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (unary_expression operand: (decimal_integer_literal)))) (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (string_literal) name: (identifier) arguments: (argument_list)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))) consequence: (expression_statement (assignment_expression left: (identifier) right: (identifier)))))) (return_statement (identifier))))