質問編集履歴
1
Point.javaとPointObj.javaを追記しました。忘れていました、申し訳ありません。
test
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File without changes
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test
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@@ -278,6 +278,98 @@
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281
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### Point.java
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282
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283
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284
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285
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```java
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286
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public interface Point {
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288
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289
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public double getX();
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290
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291
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public double getY();
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292
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293
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public double dist(Point q);
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294
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}
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```
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300
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### PointObj.java
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305
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```java
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public class PointObj implements Point {
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310
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311
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312
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313
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double x;
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315
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double y;
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318
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319
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PointObj(double x, double y) {
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this.x = x;
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322
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323
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this.y = y;
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324
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325
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}
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326
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327
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328
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329
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public double getX() {
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330
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331
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return this.x;
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333
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}
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335
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336
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public double getY() {
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338
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339
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return this.y;
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340
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}
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343
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344
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public double dist(Point q) {
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346
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double dx = this.x - q.getX();
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348
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double dy = this.y - q.getY();
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350
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return Math.sqrt(dx*dx + dy*dy);
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}
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354
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355
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356
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public String toString() {
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358
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return "(" + this.x + ", " + this.y + ")";
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360
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}
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}
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```
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### 試したこと
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