继承Java、Kotlin对比实现

BetterZhang · Jun 28, 2017 · 5ee5d2a · 5ee5d2a
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diff --git a/src/com/betterzhang/learnkotlin/java/People.java b/src/com/betterzhang/learnkotlin/java/People.java
@@ -0,0 +1,26 @@
+package com.betterzhang.learnkotlin.java;
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/28 上午 10:00
+ * Desc   : description
+ */
+public class People {
+
+    private String name = null;
+
+    public People(String name) {
+        this.name = name;
+    }
+
+    public void sayHello() {
+        System.out.println("Hello Java");
+    }
+
+    public final void sayGood() {
+        System.out.println("Good");
+    }
+
+}
diff --git a/src/com/betterzhang/learnkotlin/java/Student.java b/src/com/betterzhang/learnkotlin/java/Student.java
@@ -0,0 +1,25 @@
+package com.betterzhang.learnkotlin.java;
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/28 上午 10:02
+ * Desc   : description
+ */
+public final class Student extends People {
+
+    private String school = null;
+
+    public Student(String name, String school) {
+        super(name);
+        this.school = school;
+    }
+
+    @Override
+    public void sayHello() {
+        super.sayHello();
+        System.out.println("Hello Student");
+    }
+
+}
diff --git a/src/com/betterzhang/learnkotlin/kotlin/People.kt b/src/com/betterzhang/learnkotlin/kotlin/People.kt
@@ -0,0 +1,15 @@
+package com.betterzhang.learnkotlin.kotlin
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/28 上午 10:15
+ * Desc   : description
+ */
+open class People(private var name: String? = null) {
+
+    open fun sayHello() = println("Hello Kotlin")
+    fun sayGood() = println("Good")
+
+}
diff --git a/src/com/betterzhang/learnkotlin/kotlin/Student.kt b/src/com/betterzhang/learnkotlin/kotlin/Student.kt
@@ -0,0 +1,17 @@
+package com.betterzhang.learnkotlin.kotlin
+
+/**
+ * Created by IntelliJ IDEA.
+ * Author : Andrew Zhang
+ * Email  : betterzhang.dev@gmail.com
+ * Time   : 2017/06/28 上午 10:17
+ * Desc   : description
+ */
+class Student(private var school: String? = null, name: String) : People(name) {
+
+    override fun sayHello() {
+        super.sayHello()
+        println("Hello Student")
+    }
+
+}