Create Test.java

codes/TechSister/src/main/java/com/itwanger/twentyfour/instanceof1/Test.java

+package com.itwanger.twentyfour.instanceof1;
+
+import cn.hutool.core.lang.Assert;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author 微信搜「沉默王二」，回复关键字 Java
+ */
+public class Test {
+    public static void main(String[] args) {
+        Ring ring = new Ring();
+        System.out.println(ring instanceof Round);
+
+Circle circle = new Circle();
+System.out.println(circle instanceof Circle);
+
+        System.out.println(circle instanceof Round);
+        System.out.println(circle instanceof Shape);
+//System.out.println(circle instanceof Triangle);
+
+
+Thread thread = new Thread();
+System.out.println(thread instanceof Object);
+    }
+}
+class Round {
+}
+class Ring extends Round {
+}
+
+interface Shape {
+}
+
+class Circle extends Round implements Shape {
+}
+class Triangle implements Shape {
+}
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