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Java_1から100までの総和

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public class Main {


    public static void main(String[] args) {


        int[] a = java.util.stream.IntStream.rangeClosed(1, 100).toArray();
        int sum = java.util.Arrays.stream(a).sum();


        System.out.println(sum); 
    }


}
//5050

参考

次にやること

Java8の参考書を読む。

あとがき

ストリームに詳しくなりたい。

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