質問編集履歴
2
文法、エラーコード更新
test
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```
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Exception in thread "main" java.lang.
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Exception in thread "main" java.lang.Error: Unresolved compilation problem:
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到達不能コード
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at traning.Test.main(Test.java:
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at traning.Test.main(Test.java:36)
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文法の修正
test
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test
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@@ -34,17 +34,11 @@
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```Java
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package traning
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package traning;
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import java.io.
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import java.nio.charset.Charset;
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import java.io.IOException;
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import java.net.URI;
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import java.nio.file.Files;
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@@ -64,182 +58,190 @@
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public class Test{
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public static void main(String[] args) {
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public static void main(String[] args) {
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//自インスタンス生成
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Test tes = new Test();
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Test test = new Test();
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//引数の確認
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if (args.length != 1) {
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System.out.println("引数を指定してください");
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return;
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}
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//パスオブジェクトをgetメソッドで作成
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Path path = Paths.get(args[0]);
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if(!Files.exists(path));{
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System.out.println("ファイルが開けないか存在しません。");
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return;
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}
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//ファイル読込
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List<String> list;
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try{
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list = Files.readAllLines(path,Charset.forName("SJIS"));
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}catch( IOException e ) {
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e.printStackTrace();
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System.out.println("ファイルパスが正しくありません");
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return;
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}
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/*データ抽出呼び出し*/
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List<String> ProductList = rac.ExtractProduct(list);
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List<Integer> PriceList = rac.ExtractPrice(list);
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/*商品名と価格画面表示*/
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for(int count = 0; count<PriceList.size();count++){
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System.out.print(ProductList.get(count) + "は");
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System.out.println(PriceList.get(count)+ "円");
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}
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int total = test.totalAmount(PriceList);
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}
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List<String> ExtractProduct(List<String> list){
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List<String> ProductList = new ArrayList<String>();
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//商品名抽出
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for (int i = 0; i<list.size(); i++){
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String regexProductName = "\\[(.+)\\]";
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Pattern patternProduct = Pattern.compile(regexProductName);
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Matcher matchProduct = patternProduct.matcher(list.get(i));
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if(matchProduct.find()){
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ProductList.add(matchProduct.group(0));
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//抽出不可
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}else{
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ProductList.add(null);
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}
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}
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return ProductList;
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}
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List<Integer> ExtractPrice (List<String> list){
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List<Integer> PriceList = new ArrayList<Integer>();
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//価格抽出
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for (int j = 0; j<list.size(); j++){
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String regexPriceName = "\\\\(\\d+)";
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Pattern pattrenPrice = Pattern.compile(regexPriceName);
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Matcher matchPrice = pattrenPrice.matcher(list.get(j).toString());
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if(matchPrice.find()){
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PriceList.add(Integer.parseInt(matchPrice.group(1)));
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//抽出不可
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}else{
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PriceList.add(0);
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}
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}
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return PriceList;
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}
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/*合計金額算出処理*/
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int totalAmount(List<Integer> PriceList){
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int total =0;
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for(int k =0; k<PriceList.size(); k++){
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total += PriceList.get(k);
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}
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System.out.println("合計金額は"+total+"円です");
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return total;
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}
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List<String> ProductExtraction (List<String> list){
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List<String> ProductList = new ArrayList<String>();
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for (int i = 0; i<list.size(); i++){
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String regexProductName = "(\\[)(\\])";
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Pattern patternProduct = Pattern.compile(regexProductName);
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Matcher matchProduct =patternProduct.matcher(list.get(i));
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if(matchProduct.find()){
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ProductList.add(matchProduct.group(0));
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}else{
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ProductList.add(null);
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System.err.println("抽出不可");
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}
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}
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return ProductList;
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}
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List<Integer> PriceExtraction (List<Integer> list){
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List<Integer> PriceList = new ArrayList<Integer>();
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for (int j = 0; j<list.size(); j++){
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String regexPriceName = "\\d+";
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Pattern pattrenPrice = Pattern.compile(regexPriceName);
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Matcher matchPrice = pattrenPrice.matcher(list.get(j).toString());
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if(matchPrice.find()){
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PriceList.add(Integer.parseInt(matchPrice.group(1)));
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}else{
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PriceList.add(null);
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System.err.println("抽出不可");
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}
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}
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return PriceList;
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List<String> ProductList = tes.ProductExtraction(list);
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List<Integer> PriceList = tes.PriceExtraction(list);
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for(int count = 0; count<PriceList.size();count++){
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System.out.println(ProductList.get(count) + "は");
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System.out.println(PriceList.get(count)+ "円");
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}
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int total =0;
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for(int k =0; k<PriceList.size(); k++){
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total +=((Integer)PriceList.get(k));
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System.out.println("合計金額は"+total+"円です");
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}
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}
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}
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```
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