質問編集履歴
1
インターフェースを追加しました。
test
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File without changes
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test
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@@ -34,7 +34,23 @@
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```java
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public interface Shipping{
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String info();
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int shipping();
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int handling();
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}
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```
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```java
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public class Fruit extends Content{
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public class Fruit extends Content implements Shipping{
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private int size;
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@@ -138,7 +154,7 @@
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```java
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public class Vegetable extends Content{
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public class Vegetable extends Content implements Shipping{
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