public class JieXi

{

  public static void main(String[] args) throws Exception {

         String str = "(a or b) and c";

         str = str.replaceAll("or", "||");

         str = str.replaceAll("and", "&&");

         System.out.println(str);

         ScriptEngineManager manager = new ScriptEngineManager();

         ScriptEngine engine = manager.getEngineByName("js");

         engine.put("a",true);

         engine.put("b",false);

         engine.put("c",true);

         Object result = engine.eval(str);

         System.out.println("结果类型:" + result.getClass().getName() + ",计算结果:" + result);

     }

}