回答編集履歴
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Comparableの実装例
test
CHANGED
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@@ -23,3 +23,53 @@
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Collections.reverseOrder()の代わりにjava.util.Comparatorの実装クラス(匿名クラスで良いです)
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を指定する必要があります。
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---
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Comparatorの実装が提示済みなので、Comparableの例を追記
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```java
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public class MyData implements Comparable<MyData> {
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public int index;
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public double data;
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MyData(int index, double data) {
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this.index = index;
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this.data = data;
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}
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public String toString() {
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return "[" + index + "] = " + data;
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}
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@Override
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public int compareTo(MyData o) {
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if(this.index == o.index) return 0;
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return this.index > o.index ? 1 : -1;
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}
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}
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```
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