質問編集履歴
3
追記
test
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File without changes
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test
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@@ -168,6 +168,8 @@
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168
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169
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となってしまいました
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170
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171
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+
追記sum_kokugo sum_mathが数値型ではなかったため起きたエラーでした
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172
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+
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171
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```Ruby
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174
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class PointTotalization
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@@ -203,3 +205,45 @@
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end
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```
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208
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+
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こうしたらちゃんと動きました
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212
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213
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214
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215
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```Ruby
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216
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+
class PointTotalization
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puts "6人の国語・数学の点数を入力せよ"
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i = 0
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sum_kokugo = 0
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sum_math = 0
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while i < 6
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print "#{i+1}番...国語："
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230
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+
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231
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kokugo = gets.to_i
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+
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233
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print " 数学："
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234
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+
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235
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math = gets.to_i
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236
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+
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237
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sum_kokugo += kokugo
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+
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sum_math += math
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240
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+
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i += 1
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+
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end
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puts "平均 #{sum_kokugo/6} #{sum_math/6}"
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end
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+
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```
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2
追記
test
CHANGED
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File without changes
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test
CHANGED
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@@ -159,3 +159,47 @@
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159
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160
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```
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+
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とりあえず平均だけだそうと思ったのですが、
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166
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<class:PointTotalization>': undefined method `+' for nil:NilClass (NoMethodError)
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168
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+
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169
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+
となってしまいました
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170
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+
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171
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+
```Ruby
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172
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+
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173
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+
class PointTotalization
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174
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+
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175
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puts "6人の国語・数学の点数を入力せよ"
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176
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+
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177
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+
#point = Array.new(2)
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+
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179
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#kokugo = point[0]
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180
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+
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181
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#math = point[1]
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182
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+
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183
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i = 0
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184
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+
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185
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while i < 7
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186
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+
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187
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print "#{i+1}番...国語："
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188
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+
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189
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kokugo = gets.to_i
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190
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+
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191
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print " 数学："
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192
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+
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193
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math = gets.to_i
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194
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+
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195
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sum_kokugo += kokugo
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196
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197
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sum_math += math
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198
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199
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end
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200
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+
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201
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puts "平均 #{sum_kokugo/6} #{sum_math/6}"
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202
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203
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end
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204
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+
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205
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```
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1
改善
test
CHANGED
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File without changes
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test
CHANGED
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@@ -5,6 +5,92 @@
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5
5
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どう書いたらいいのかわかりません
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6
6
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7
7
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教えてくれるとありがたいです
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8
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+
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9
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11
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13
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下がjavaの元のコードです
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15
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17
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```Java
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19
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import java.util.Scanner
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20
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21
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22
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23
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class PointTotalization {
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27
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public static void main (String[] args) {
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28
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29
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Scanner stdIn = new Scanner(System.in);
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30
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+
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31
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+
final int NINZU = 6;
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32
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+
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33
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+
int[][] point = new int[NINZU][2];
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34
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+
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35
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+
int[] sumStudent = new int[NINZU];
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36
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37
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+
int[] sumSubject = new int[2];
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38
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39
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40
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41
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System.out.printf("%d人の国語・数学の点数を入力せよ。\n", NINZU);
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43
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+
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44
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45
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+
for (int i = 0; i < NINZU; i++) {
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46
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+
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47
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System.out.printf("%2d番...国語：", i + 1);
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48
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49
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point[i][0] = stdIn.nextInt();
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50
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51
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+
System.out.print(" 数学"：);
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52
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53
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+
point[i][1] = stdIn.nextInt();
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54
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+
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55
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+
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56
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+
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57
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+
sumStudent[i] = point[i][0] + point[i][1];
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58
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+
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59
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+
sumSubject[0] += point[i][0];
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60
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+
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61
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+
sumSubject[1] += point[i][1];
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62
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+
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63
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+
}
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64
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+
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65
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+
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66
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+
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67
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System.out.println("No. 国語 数学 平均");
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68
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+
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69
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+
for (int i = 0; i < NINZU; i++)
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70
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+
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71
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+
System.out.printf("%2d%6d%6d%6.1f\n", i + 1, point[i][0], point[i][1],(double)sumStudent[i] / 2);
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72
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+
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73
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+
System.out.printf("平均%6.1f%6.1f\n", (double)sumSubject[0] / NINZU, (double)sumSubject[1] / NINZU)
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74
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+
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75
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+
}
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76
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+
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77
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+
}
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78
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+
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79
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+
```
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80
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+
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81
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+
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82
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+
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83
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+
これが僕が書いたRubyのコードです
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84
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+
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85
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+
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|
86
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+
|
|
87
|
+
エラーは文はこちらです
|
|
88
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+
|
|
89
|
+
`<class:PointTotalization>': undefined method `+' for nil:NilClass (NoMethodError)
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90
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+
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91
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+
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92
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+
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93
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+
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8
94
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9
95
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10
96
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