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做菜 #225
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做菜 #225
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Original file line number | Diff line number | Diff line change |
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@@ -5,7 +5,7 @@ public class Main { | |
// 提取他们的公共代码到`菜`中,完成重构 | ||
// 注意不要修改各个菜的烹饪步骤 | ||
public static void main(String[] args) { | ||
菜[] 菜们 = new 菜[] {new 西红柿炒鸡蛋(), new 清炒菜心(), new 煎牛排()}; | ||
菜[] 菜们 = new 菜[]{new 西红柿炒鸡蛋(), new 清炒菜心(), new 煎牛排()}; | ||
for (菜 一个菜 : 菜们) { | ||
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一个菜.做一个菜(); | ||
} | ||
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Original file line number | Diff line number | Diff line change |
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@@ -1,13 +1,19 @@ | ||
package com.github.hcsp.polymorphism; | ||
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public class 清炒菜心 { | ||
public void 做个清炒菜心() { | ||
System.out.println("洗炒锅"); | ||
System.out.println("倒一点点油"); | ||
public class 清炒菜心 extends 菜 { | ||
@Override | ||
public void 倒油() { | ||
System.out.println("倒一丢丢油"); | ||
} | ||
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@Override | ||
public void 开始烹饪() { | ||
System.out.println("放青菜"); | ||
System.out.println("炒啊炒啊炒"); | ||
System.out.println("放酱油"); | ||
System.out.println("放盐"); | ||
System.out.println("香喷喷的清炒菜心出锅啦"); | ||
} | ||
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@Override | ||
public void 出锅() { | ||
System.out.println("香喷喷的清炒青菜出锅啦"); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -1,13 +1,25 @@ | ||
package com.github.hcsp.polymorphism; | ||
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public class 煎牛排 { | ||
public void 煎个牛排() { | ||
public class 煎牛排 extends 菜 { | ||
@Override | ||
public void 洗锅() { | ||
System.out.println("洗煎锅"); | ||
System.out.println("倒油"); | ||
} | ||
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@Override | ||
public void 开始烹饪() { | ||
System.out.println("放牛排"); | ||
System.out.println("煎啊煎啊煎"); | ||
} | ||
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@Override | ||
public void 放佐料() { | ||
System.out.println("放胡椒粉"); | ||
System.out.println("放盐"); | ||
} | ||
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@Override | ||
public void 出锅() { | ||
System.out.println("香喷喷的煎牛排出锅啦"); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -1,13 +1,15 @@ | ||
package com.github.hcsp.polymorphism; | ||
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public class 西红柿炒鸡蛋 { | ||
public void 做个西红柿炒鸡蛋() { | ||
System.out.println("洗炒锅"); | ||
System.out.println("倒油"); | ||
public class 西红柿炒鸡蛋 extends 菜 { | ||
@Override | ||
public void 开始烹饪() { | ||
System.out.println("放鸡蛋"); | ||
System.out.println("放西红柿"); | ||
System.out.println("炒啊炒啊炒"); | ||
System.out.println("放盐"); | ||
} | ||
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@Override | ||
public void 出锅() { | ||
System.out.println("香喷喷的西红柿炒鸡蛋出锅啦"); | ||
} | ||
} |
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名称 '菜们' 必须匹配表达式: '^[a-z][a-zA-Z0-9]*$' 。