★★ Java の宿題ここで答えます Part 68 ★★

★★ Java の宿題ここで答えます Part 68 ★★ at TECH

853:デフォルトの名無しさん
10/02/09 17:41:34
>>850
public abstract class Trip {
public abstract int getFoodCost();
public abstract int getRoomCost();
public abstract int getTravelCost();
public int getTotalCost() {
return getFoodCost() + getRoomCost() + getTravelCost();
}
}
public class JapanTrip extends Trip {
@Override public int getFoodCost() { return 10000; }
@Override public int getRoomCost() { return 30000; }
@Override public int getTravelCost() { return 50000; }
}
public class AmericaTrip extends Trip {
@Override public int getFoodCost() { return 10000; }
@Override public int getRoomCost() { return 30000; }
@Override public int getTravelCost() { return 300000; }
}

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