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August 29, 2015 14:28
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Listの中から要素を検索する練習
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import java.util.ArrayList; | |
public class Aug24 { | |
public void searchItem(ArrayList<String> itembox,String input){ | |
int catcounter = 0; | |
for(int i=0;i<itembox.size();i++){ | |
if(itembox.get(i)==input){ | |
System.out.println(input+"は"+(i+1)+"番目に一つありました"); | |
catcounter++; | |
}else{ | |
System.out.println((i+1)+"番目の要素は"+input+"ではありません"); | |
System.out.println("それは"+itembox.get(i)+"です。"); | |
} | |
} | |
System.out.println(input+"は、合わせて"+catcounter+"個ありました。"); | |
} | |
} |
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import java.util.ArrayList; | |
public class Aug24Test { | |
public static void main(String[] args) { | |
Aug24 testAug24 = new Aug24(); | |
ArrayList<String> itembox = new ArrayList<String>(); | |
itembox.add("ねこ"); | |
itembox.add("ねこ"); | |
itembox.add("もち"); | |
itembox.add("ねこ"); | |
itembox.add("もち"); | |
testAug24.searchItem(itembox,"ねこ"); | |
} | |
} |
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ねこは1番目に一つありました | |
ねこは2番目に一つありました | |
3番目の要素はねこではありません | |
それはもちです。 | |
ねこは4番目に一つありました | |
5番目の要素はねこではありません | |
それはもちです。 | |
ねこは、合わせて3個ありました。 |
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