[Java] JAVA의 정석 기초편 챕터3 문제

 

 

 

 

public class JavaChapter3 {
    public static void main(String[] args) {
        Practice3_3 p33 = new Practice3_3();

        Practice3_4 p34 = new Practice3_4();

        Practice3_5 p35 = new Practice3_5();

        Practice3_6 p36 = new Practice3_6();
    }
}

class Practice3_3 {
    int num = 456;

    Practice3_3() {
        System.out.println((this.num - (this.num % 100)));
    }
}

class Practice3_4 {
    int numOfApples = 121;
    int sizeOfBucket = 10;
    int numOfBucket;

    Practice3_4() {
        this.numOfBucket = (this.numOfApples % this.sizeOfBucket > 0) ? this.numOfApples / this.sizeOfBucket + 1 : this.numOfApples / this.sizeOfBucket;
        System.out.println("필요한 바구니의 수 :" + this.numOfBucket);
    }
}


class Practice3_5 {
    int num = 10;

    Practice3_5() {
        System.out.println((this.num) > 0 ? "양수" : (this.num) < 0 ? "음수" : 0);
    }
}

class Practice3_6 {
    int fahrenheit = 100;
    float celcius = 0f;

    Practice3_6() {
        System.out.println("fahrenheit:" + this.fahrenheit);
        this.celcius = (int) (((float) 5 / 9) * ((float) this.fahrenheit - 32) * 100 + 0.5f) / 100f;
        System.out.println("celcius:" + this.celcius);
    }
}

 

 

 

출력결과

 

 

 

 

 

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