Q&A
頑張れー
前回、テトリスを作っていて回転を制御するプログラムを質問させてもらったものです。
あのあと考えてみて、こんなしようのプログラムを考えてみました。
mainで一番上からランダムでテトリミノが出てきたとき、テトリミノごとに番号を振っています。
例）Tetorimino == 1 だったら 「●●●●」 という形
という感じです
mainからTetoriminoを受け取って、その番号を取得したあと、
さらに回転番号をつけます。
例）Tetorimino == 1 だったら 「●●●●」 という形
さらにそこから番号入力を求めます
例）bango に１を入力したら
別の配列に入れておいた
[●
●
●
●」 ←縦一列に並んでるものと思ってください＞＜
をmainに出すプログラムを考えました
そしてコンパイルしたところエラーが１００件以上出てしまいました＞＜
すべてのエラーの内容が「文ではありません」「；がありません」がほとんどです
どこが間違っているのかわかりません。
どこが間違っているのかご指摘お願いします(＞人＜;)
※配列がものすごく見づらくなってしまってすいません＞＜
上一列の配列と
下３列の配列の位置がずれてしまってますが縦４行揃ってるものと思ってもらってください＞＜
public class operation2 {
public static void main(String[] args) throws IOException {
/*入力の準備*/ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String[][] turnedBlock = new String[4][4]; /* テトリミノを回転させる */ if (Tetorimino == 0 ) { //テトリミノ「●●●●」の回転 turnedBlock [][] = {{"□","□","□","□"}, {"●","●","●","●"}, {"□","□","□","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","●","□","□"}, {"□","●","□","□"}, {"□","●","□","□"}, {"□","●","□","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"●","●","●","●"}, {"□","□","□","□"}, {"□","□","□","□"}}; break; } //テトリミノ「●● // ●●」の回転 } else if (Tetorimino == 1) { turnedBlock[][] = {{"□","□","□","□"}, {"□","●","●","□"}, {"□","●","●","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango = 1) { case 1: turnedBlock[][] = {{"□","□","□","□"}, {"□","●","●","□"}, {"□","●","●","□"}, {"□","□","□","□"}}; break; } //テトリミノ「 ● // ●●●」の回転 } else if (Tetorimino == 2){ turnedBlock[][] = {{"□","●","□","□"}, {"●","●","●","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","●","□","□"}, {"□","●","●","□"}, {"□","●","□","□"}, {"□","□","□","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"●","●","●","□"}, {"□","●","□","□"}, {"□","□","□","□"}}; break; case 3: turnedBlock[][] = {{"□","●","□","□"}, {"●","●","□","□"}, {"□","●","□","□"}, {"□","□","□","□"}}; break; case 4: turnedBlock[][] = {{"□","●","□","□"}, {"●","●","●","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; break; } //テトリミノ「 ■■ // ■■」の回転 } else if (Tetorimino == 3) { turnedBlock[][] = {{"□","□","□","□"}, {"□","■","■","□"}, {"■","■","□","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","□","□","□"}, {"□","■","□","□"}, {"□","■","■","□"}, {"□","□","■","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"□","□","□","□"}, {"□","■","■","□"}, {"■","■","□","□"}}; break; case 3: turnedBlock[][] = {{"□","□","□","□"}, {"■","□","□","□"}, {"■","■","□","□"}, {"□","■","□","□"}}; break; case 3: turnedBlock[][] = {{"□","□","□","□"}, {"□","■","■","□"}, {"■","■","□","□"}, {"□","□","□","□"}}; break; } //テトリミノ「■■ // ■■」の回転 } else if (Tetorimino == 4) { turnedBlock[][] = {{"□","□","□","□"}, {"■","■","□","□"}, {"□","■","■","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","□","□","□"}, {"□","□","■","□"}, {"□","■","■","□"}, {"□","■","□","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"□","□","□","□"}, {"■","■","□","□"}, {"□","■","■","□"}}; break; case 3: turnedBlock[][] = {{"□","□","□","□"}, {"□","■","□","□"}, {"■","■","□","□"}, {"■","□","□","□"}}; break; case 4: turnedBlock[][] = {{"□","□","□","□"}, {"■","■","□","□"}, {"□","■","■","□"}, {"□","□","□","□"}}; break; } //テトリミノ「 ■ // ■■■」の回転 } else if (Tetorimino == 5) { turnedBlock[][] = {{"□","□","■","□"}, {"■","■","■","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","■","□","□"}, {"□","■","□","□"}, {"□","■","■","□"}, {"□","□","□","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"■","■","■","□"}, {"■","□","□","□"}, {"□","□","□","□"}}; break; case 3: turnedBlock[][] = {{"■","■","□","□"}, {"□","■","□","□"}, {"□","■","□","□"}, {"□","□","□","□"}}; break; case 4: turnedBlock[][] = {{"□","□","■","□"}, {"■","■","■","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; break; } //テトリミノ「■ // ■■■」の回転 } else { turnedBlock[][] = {{"■","□","□","□"}, {"■","■","■","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; System.out.plintln("回転させたい図の番号を入力してください") int bango =("u"); bango = br.readLine(); switch (bango) { case 1: turnedBlock[][] = {{"□","■","■","□"}, {"□","■","□","□"}, {"□","■","□","□"}, {"□","□","□","□"}}; break; case 2: turnedBlock[][] = {{"□","□","□","□"}, {"■","■","■","□"}, {"□","□","■","□"}, {"□","□","□","□"}}; break; case 3: turnedBlock[][] = {{"□","■","□","□"}, {"□","■","□","□"}, {"■","■","□","□"}, {"□","□","□","□"}}; break; case 4: turnedBlock[][] = {{"■","□","□","□"}, {"■","■","■","□"}, {"□","□","□","□"}, {"□","□","□","□"}}; break; } }
}
}
回答4件
0
ベストアンサー
ここじゃない？
intに文字列を代入しようとしている。
int bango =("u");
turnedBlockはすでに変数宣言しているので、代入の箇所であっても、再度変数宣言のように書かない。
turnedBlock[][]
投稿2017/02/01 04:08
編集2017/02/01 04:11総合スコア213
0
Eclipseを使っていないんですね。とても出来る先生がいるんですね。
こうじゃないかな、で書きます。
「文ではありません」
配列は{}で囲むのではなく、[]です。
JavaScriptではJson形式を｛｝で書けますが、Javaではそのような書き方はありません。
また、JavaScriptでも配列は[]で書きます。
「；がありません」
上記の修正を行うと消えるかもしれません。
コンパイラーが一つの間違いで複数のエラーを出すことはよくあります。
構文が違うのできちんとコードを評価できていないためです。
投稿2017/02/01 01:14
総合スコア213
0
「エラーが100件以上出てしまいました＞＜」なんて言われても「一つずつ対処すればいいのでは？」としか…。
エラーメッセージを読めば以下のことくらいは直ぐに分かりそうなものですが…。
- 宣言されていない変数を使用している
- 文字列をint型の変数に代入しようとしている
- 数値と文字列を比較しようとしている
- 配列変数への代入の方法が間違っている
一気にガリガリとコードを書いてコンパイル、というやり方だと何が原因でエラーになったか非常に分かりにくいので、こまめにコンパイルしたほうが良いと思いますよ。
初心者の内は特にそうです。
というかJavaを書くならIDEを使うべきだと思いますので、講義で禁止されてないのなら導入を強くオススメします。
投稿2017/01/31 16:58
総合スコア740
turnedBlock[][]のまえにStringをつけて配列名を変えたらだいぶエラーを減らせました
ありがとうございます！
IDEは初めて聞きました 入れてみます
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2017/02/01 11:42