public static void main ( String [ ] args ) {
  char [ ] str = "Mr John Smith " . toCharArray ( ) ;
  str = replaceSpaces ( str ) ;
  for ( int i = 0 ;
  i < str . length ;
  i ++ ) System . out . print ( str [ i ] ) ;
}

public static void main ( String [ ] args ) { char [ ] str = " Mr ▁ John ▁ Smith ▁ " . toCharArray ( ) ; str = replaceSpaces ( str ) ; for ( int i = 0 ; i < str . length ; i ++ ) System . out . print ( str [ i ] ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (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)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (identifier))))))))