feat(class15): 可以自己给自己new对象了wwww

- 新增 Star 类，定义了姓名、年龄、性别、身高、体重等属性- 新增 Test 类，包含 main 方法用于测试 Star 类
- 在 Test 类中创建了两个 Star 对象，并打印其属性值

src/class15/object/Star.java

@@ -0,0 +1,10 @@
+package class15.object;
+//对象(Object)的模板--类(Class)
+public class Star {
+    String name;
+    int age;
+    String gender;
+    double height;
+    double weight;
+
+}

src/class15/object/Test.java

@@ -0,0 +1,31 @@
+package class15.object;
+
+public class Test {
+
+    public static void main(String[] args) {
+        Star s1 = new Star();
+        s1.name = "王祖贤";
+        s1.age = 50;
+        s1.gender = "女";
+        s1.height = 172.5;
+        s1.weight = 50.5;
+        System.out.println(s1.name);
+        System.out.println(s1.age);
+        System.out.println(s1.gender);
+        System.out.println(s1.height);
+        System.out.println(s1.weight);
+
+        System.out.println("===================");
+        Star s2 = new Star();
+        s2.name = "杨幂";
+        s2.age = 38;
+        s2.gender = "女";
+        s2.height = 171.5;
+        s2.weight = 52.5;
+        System.out.println(s2.name);
+        System.out.println(s2.age);
+        System.out.println(s2.gender);
+        System.out.println(s2.height);
+        System.out.println(s2.weight);
+    }
+}