static boolean isWordPresent ( String sentence , String word ) {
  String [ ] s = sentence . split ( " " ) ;
  for ( String temp : s ) {
    if ( temp . compareTo ( word ) == 0 ) {
      return true ;
    }
  }
  return false ;
}

static boolean isWordPresent ( String sentence , String word ) { String [ ] s = sentence . split ( " ▁ " ) ; for ( String temp : s ) { if ( temp . compareTo ( word ) == 0 ) { return true ; } } return false ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier)) (formal_parameter type: (type_identifier) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (type_identifier) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (string_literal))))) (enhanced_for_statement type: (type_identifier) name: (identifier) value: (identifier) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (decimal_integer_literal))) consequence: (block (return_statement (true)))))) (return_statement (false))))