class-prac-main.java

class-prac-main.java

public class CalMain {
 
	public static void main(String[] args) {
		CalPlus c1 = new CalPlus(2,4,83,240);
		System.out.println(c1.counta+"隻"+c1.countb+"隻");
		
		CalPlus c2 = new CalPlus(12,15,24,312);
		System.out.println("麵包"+c2.counta+"個"+c2.countb+"個");
		
	}
 
}

class-prac.java

public class CalPlus {
	private int basea; // 基數a
	private int baseb; // 基數b

	private int aplusb; // a+b
	private int calabsum; // ax+by

	public int counta; // 計算結果 a
	public int countb; // 計算結果 b

	public CalPlus(int a, int b, int c, int d) {
		basea = a;
		baseb = b;
		aplusb = c;
		calabsum = d;
		cNum();
	}

	public void cNum() {
		stop:
			for (int i = 1; i <= aplusb; i++)
				for (int j = 1; j <= aplusb; j++)
					if (basea * i + baseb * j == calabsum && i + j == aplusb) {
						counta = i; // i 存入 counta 
						countb = j; // j 存入 countb
						break stop;
					}

	}

}