/**     * Return whether the given throwable is a checked exception:     * that is, neither a RuntimeException nor an Error.     * @param ex the throwable to check     * @return whether the throwable is a checked exception     * @see java.lang.Exception     * @see java.lang.RuntimeException     * @see java.lang.Error     */    public static boolean isCheckedException(Throwable ex) {        return !(ex instanceof RuntimeException || ex instanceof Error);    }    /**     * Check whether the given exception is compatible with the specified     * exception types, as declared in a throws clause.     * @param ex the exception to check     * @param declaredExceptions the exception types declared in the throws clause     * @return whether the given exception is compatible     */    //如果ex是RuntimeException或者Error，则兼容，如果ex是declaredExceptions种某个类的子类则是    public static boolean isCompatibleWithThrowsClause(Throwable ex, Class<?>... declaredExceptions) {        if (!isCheckedException(ex)) {//如果ex是RuntimeException或者Error，则为true            return true;        }        if (declaredExceptions != null) {            for (Class<?> declaredException : declaredExceptions) {                if (declaredException.isInstance(ex)) {                    return true;                }            }        }        return false;    }

    public static void test(){        try {            int a = 1 / 0;        } catch (Exception e) {            if(isCompatibleWithThrowsClause(e, NoSuchFieldException.class)){                //如果是NoSuchFieldException检查性异常才进行处理                //问题是运行时异常和错误也同样要处理                System.out.println("要处理");            }        }            }