質問編集履歴

2

質問内容の修正

2019/09/27 00:13

投稿

naotaro0704
test CHANGED
File without changes
test CHANGED
@@ -658,7 +658,7 @@
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- public Item(String id, String name, int price, int quantity, int subtotal) {
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+ public Item(String id, String name, int price, int quantity, int subtotal, int pos) {
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  this.id = id;
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@@ -670,6 +670,8 @@
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  this.subtotal = subtotal;
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+ this.pos = pos;
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+
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  }
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  }

1

質問内容の修正

2019/09/27 00:13

投稿

naotaro0704
test CHANGED
File without changes
test CHANGED
@@ -575,3 +575,103 @@
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  ```
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+
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+ Item.java
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+
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+ ```java
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+
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+ public class Item {
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+
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+ private String id;
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+
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+ private String name;
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+
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+ private int price;
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+
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+ private int quantity;
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+
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+ private int subtotal;
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+
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+ private int pos;
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+
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+
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+
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+ @Override
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+
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+ public int hashCode() {
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+
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+ final int prime = 31;
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+
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+ int result = 1;
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+
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+ result = prime * result + ((id == null) ? 0 : id.hashCode());
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+
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+ return result;
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+
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+ }
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+
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+
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+
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+ @Override
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+
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+ public boolean equals(Object obj) {
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+
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+ if (this == obj) {
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+
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+ return true;
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+
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+ }
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+
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+ if (obj == null) {
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+
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+ return false;
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+
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+ }
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+
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+ if (!(obj instanceof Item)) {
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+
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+ return false;
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+
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+ }
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+
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+ Item other = (Item) obj;
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+
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+ if (id == null) {
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+
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+ if (other.id != null) {
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+
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+ return false;
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+
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+ }
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+
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+ } else if (!id.equals(other.id)) {
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+
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+ return false;
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+
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+ }
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+
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+ return true;
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+
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+ }
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+
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+ /*それぞれのgetterとsetterを生成してあります。*/
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+
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+
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+
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+ public Item(String id, String name, int price, int quantity, int subtotal) {
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+
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+ this.id = id;
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+
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+ this.name = name;
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+
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+ this.price = price;
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+
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+ this.quantity = quantity;
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+
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+ this.subtotal = subtotal;
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+
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+ }
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+
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+ }
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+
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+ ```