Java本格入門で紹介されていた文字列連結を試す。1
| 10万回 | 1万回 | 5千回 | 千回 | |
|---|---|---|---|---|
| StringBuilder | 7.4 | 0.7 | 0.5 | 0.1 |
| String#concat | 11.5 | 1.8 | 1.5 | 0.6 |
| ＋演算子 | 3453.5 | 106.2 | 20.7 | 2.2 |
※ 単位はミリ秒
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実行環境によって結果は異なる ↩
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