static int calculateLeaps ( int n ) {
  if ( n == 0 || n == 1 ) {
    return 1 ;
  }
  else {
    int leaps = 0 ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) leaps += calculateLeaps ( i ) ;
    return leaps ;
  }
}

static int calculateLeaps ( int n ) { if ( n == 0 || n == 1 ) { return 1 ; } else { int leaps = 0 ; for ( int i = 0 ; i < n ; i ++ ) leaps += calculateLeaps ( i ) ; return leaps ; } }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (block (return_statement (decimal_integer_literal))) alternative: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (expression_statement (assignment_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier)))))) (return_statement (identifier))))))