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java(ソースファイル分割)

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##元のソースファイル

public class Calc {
    public static void main(String[] args) {
        int a = 10; int b = 2;
        int total = tasu(a, b);
        int delta = hiku(a, b);
		System.out.println("足すと" + total + "、引くと" + delta);
	}
    public static int tasu(int a, int b) {
	    return (a + b);
	}
	public static int hiku(int a, int b) {
	    return (a - b);
	}
}

##複数のクラスに分割

main() と tase(),haiku()でファイルを分割

public class Calc {
    public static void main(String[] args) {
        int a = 10; int b = 2;
        int total = CalcLogic.tasu(a, b);
        int delta = CalcLogic.hiku(a, b);
		System.out.println("足すと" + total + "、引くと" + delta);
	}
}

CalcLogic.を追加しないと読み込まれない

public class CalcLogic {
    public static int tasu(int a, int b) {
	    return (a + b);
	}
	public static int hiku(int a, int b) {
	    return (a - b);
	}
}

tase()、haiku()を移動する

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