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String.substringの実行結果メモ

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public class Sample {
	public static void main(String[] args) {
		String str = "あいうえお";
		System.out.println(str.substring(0,3)); // -> あいう
		System.out.println(str.substring(3));   // -> えお
		System.out.println(str.substring(0, str.indexOf("う"))); // -> あい
	}
}

substringの動きをいつも覚えられなくて毎回スニペット書いているので、書いておきます。

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