From 4ef4cba91236d29c1ca21625b08eb1842754f11f Mon Sep 17 00:00:00 2001
From: psoyzuart <3227921895@qq.com>
Date: Sun, 28 Sep 2025 20:26:46 +0800
Subject: [PATCH] ADD file via upload

---
 src/QuestionGenerator.java | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 src/QuestionGenerator.java

diff --git a/src/QuestionGenerator.java b/src/QuestionGenerator.java
new file mode 100644
index 0000000..3e89dad
--- /dev/null
+++ b/src/QuestionGenerator.java
@@ -0,0 +1,6 @@
+public interface QuestionGenerator {
+	String generateQuestion();
+	String normalizeQuestion(String question);
+	String generateOperator(String[] operators);
+	boolean isValidParentheses(String expression);
+}