回答編集履歴
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ソースの追加
test
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@@ -49,3 +49,47 @@
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<追記> メソッドを戻り値なしのvoidの形で書く方法です。
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```Java
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public class Sum {
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public static void main(String[] args) {
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sum(1, 10);
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sum(-5, 10);
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sum(10, 20);
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}
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private static void sum(int start, int end)
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{
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int sum = 0;
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for(int i = start; i <= end;i++){
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sum += i;
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}
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System.out.println(sum);
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}
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}
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```
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