yi-yun
diff --git a/‎.idea/compiler.xml‎
Lines changed: 2 additions & 2 deletions b/‎.idea/compiler.xml‎
Lines changed: 2 additions & 2 deletions
diff --git a/‎java_test/src/main/java/com/yiyun/SafePoint.java‎
Lines changed: 22 additions & 0 deletions b/‎java_test/src/main/java/com/yiyun/SafePoint.java‎
Lines changed: 22 additions & 0 deletions
@@ -0,0 +1,22 @@
+package com.yiyun;
+
+import lombok.AllArgsConstructor;
+
+@AllArgsConstructor
+public class SafePoint {
+
+    private int x,y;
+    private SafePoint(int [] a){
+        this(a[0],a[1]);
+    }
+    public SafePoint(SafePoint point){
+        this(point.get());
+    }
+    public synchronized int[] get() {
+        return new int[]{x,y};
+    }
+    public synchronized void set(int x,int y){
+        this.x=x;
+        this.y=y;
+    }
+}