From bfd675a4387cab7e2d2b3606221873ceffdd852e Mon Sep 17 00:00:00 2001
From: Jason Lu <wjlukuan@hotmail.com>
Date: Mon, 14 Apr 2025 10:36:29 +0800
Subject: [PATCH] add demo for execution order of try catch finally

---
 src/main/java/jvm/TryCatchDemo.java | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/main/java/jvm/TryCatchDemo.java

diff --git a/src/main/java/jvm/TryCatchDemo.java b/src/main/java/jvm/TryCatchDemo.java
new file mode 100644
index 0000000..bfa2282
--- /dev/null
+++ b/src/main/java/jvm/TryCatchDemo.java
@@ -0,0 +1,27 @@
+package main.java.jvm;
+
+/**
+ * in test method, x will assign to return value, here should be 1 (it will not throw any errors)
+ * then, the finally block will change x to 3, but the return value will not change
+ * How finally work is attach the code block in it to try block and catch block
+ */
+public class TryCatchDemo {
+
+    public int test() {
+        int x=0;
+        try {
+            x=1;
+            return x;
+        } catch (Exception e) {
+            x=2;
+            return x;
+        } finally {
+            x=3;
+        }
+    }
+
+    public static void main(String[] args) {
+        TryCatchDemo tryCatchDemo = new TryCatchDemo();
+        System.out.println(tryCatchDemo.test());
+    }
+}