多态01

xiachaochao · xiachaochao · commit c8507243f0f6 · 2017-03-27T19:09:42.000+08:00
diff --git a/JavaBase/.project b/JavaBase/.project
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>JavaBase</name>
+	<name>JavaBaseCrazy</name>
 	<comment></comment>
 	<projects>
 	</projects>
diff --git a/JavaBase/src/com/xinan/testoop/Dog.java b/JavaBase/src/com/xinan/testoop/Dog.java
@@ -1,7 +1,21 @@
 package com.xinan.testoop;
 
 public class Dog extends Pet {
+	public Dog() {
+		super();
+	}
+
+	public Dog(String name) {
+		super(name);
+	}
+
+	public Dog(String name, int age, int love) {
+		super(name, age, love);
+	}
+	public void eat(){
+		System.out.println("小狗吃东西");
+	}
 	public void catchingFlyDisc(){
-		System.out.println("");
+		System.out.println("小狗玩飞碟");
 	}
 }
diff --git a/JavaBase/src/com/xinan/testoop/LomBokDemo.java b/JavaBase/src/com/xinan/testoop/LomBokDemo.java
diff --git a/JavaBase/src/com/xinan/testoop/Master.java b/JavaBase/src/com/xinan/testoop/Master.java
@@ -1,15 +1,32 @@
 package com.xinan.testoop;
 
 public class Master {
-	
-		public Pet getPet(String typeId){
-			if(typeId.equalsIgnoreCase("dog")){
-				Pet pet=new Dog();
-				return pet;
-			}
-			else{
-				return null;
-			}
+	public void play(Pet pet){//使用父类Pet pet作为方法形参实现多态
+		if(pet instanceof Dog){
+			Dog dog=(Dog) pet;
+			dog.catchingFlyDisc();
+		}
+		else if(pet instanceof Penguin){
+			Penguin penguin=(Penguin) pet;
+			penguin.swimming();
+		}
+		else{
+			System.out.println("您输入的有误");
+		}
+	}
+	public Pet getPet(String typeId){
+		if(typeId.equalsIgnoreCase("dog")){//equalsIgnoreCase忽略大小写
+			Pet pet=new Dog();
+			return pet;
+		}
+		else if(typeId.equalsIgnoreCase("Penguin")){
+			Pet pet=new Penguin();
+			return pet;
+		}
+		else{
+			System.out.println("您输入的有误");
+			return null;
 		}
 	}
+}
 
diff --git a/JavaBase/src/com/xinan/testoop/Penguin.java b/JavaBase/src/com/xinan/testoop/Penguin.java
@@ -1,7 +1,24 @@
 package com.xinan.testoop;
 
-public class Penguin extends Pet{
-	public void swimming(){
-		System.out.println("");
+public class Penguin extends Pet {
+
+	public Penguin() {
+		super();
+	}
+
+	public Penguin(String name) {
+		super(name);
+	}
+
+	public Penguin(String name, int age, int love) {
+		super(name, age, love);
+	}
+
+	public void eat() {
+		System.out.println("Penguin eat!");
+	}
+
+	public void swimming() {
+		System.out.println("和企鹅玩游泳！！");
 	}
-}
+}
diff --git a/JavaBase/src/com/xinan/testoop/Pet.java b/JavaBase/src/com/xinan/testoop/Pet.java
@@ -1,5 +1,24 @@
 package com.xinan.testoop;
 
 public abstract class Pet {
-
+	String name;
+	int age=50;
+	private int love=100;
+	public Pet(){}
+	public Pet(String name){
+		super();
+		this.name=name;
+	}
+	public Pet(String name,int age,int love){
+		super();
+		this.name=name;
+		this.age=age;
+		this.love=love;
+	}
+	public final void print(){
+		System.out.println("name "+name+"age"+age+"love"+love);
+    }
+	public void eat(){
+		System.out.println("pet eat");
+	}
 }
diff --git a/JavaBase/src/com/xinan/testoop/Test.java b/JavaBase/src/com/xinan/testoop/Test.java
@@ -0,0 +1,5 @@
+package com.xinan.testoop;
+
+public class Test {
+
+}

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +package com.xinan.testoop;
++
 +public class Test {
++
 +}