获得class的实例Java、Kotlin对比实现

BetterZhang · Jun 29, 2017 · 1ade651 · 1ade651
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diff --git a/src/com/betterzhang/learnkotlin/java/ClassZZ.java b/src/com/betterzhang/learnkotlin/java/ClassZZ.java
@@ -0,0 +1,21 @@
+package com.betterzhang.learnkotlin.java;
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/29 下午 4:57
+ * Desc   : 获得class的实例
+ */
+public class ClassZZ {
+
+    public static void main(String[] args) {
+        Class<?> clazz = ClassZZ.class;
+        System.out.println(clazz);
+
+        ClassZZ c = new ClassZZ();
+        Class<?> clazz2 = c.getClass();
+        System.out.println(clazz2);
+    }
+
+}
diff --git a/src/com/betterzhang/learnkotlin/kotlin/ClassZZ.kt b/src/com/betterzhang/learnkotlin/kotlin/ClassZZ.kt
@@ -0,0 +1,25 @@
+package com.betterzhang.learnkotlin.kotlin
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/29 下午 5:03
+ * Desc   : 获得class的实例
+ */
+class ClassZZ {
+
+    companion object {
+        @JvmStatic
+        fun main(args: Array<String>) {
+            // ClassZZ::class拿到的是Kotlin的KClass,再转换成Java的class实例
+            val clazz = ClassZZ::class.java
+            println(clazz)
+
+            val c = ClassZZ()
+            val clazz2 = c.javaClass
+            println(clazz2)
+        }
+    }
+
+}