public static int sumOfSeries ( int n ) {
  int sum = 0 ;
  for ( int x = 1 ;
  x <= n ;
  x ++ ) sum += x * x * x ;
  return sum ;
}

public static int sumOfSeries ( int n ) { int sum = 0 ; for ( int x = 1 ; x <= n ; x ++ ) sum += x * x * x ; return sum ; }
(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: (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: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier))))) (return_statement (identifier))))