作者WeiMyWoW (...)
看板java
標題[問題] 新手寫BMI遇到計算的問題
時間Wed Jan 23 00:52:25 2013
import java.util.Scanner;
public class BmiTestDive {
public static void main (String[] args) {
Scanner scanner = new Scanner(System.in);
Bmi one = new Bmi();
System.out.println("Your Height");
one.Height = scanner.nextInt()/100;
System.out.println("Your Weight");
one.Weight = scanner.nextInt();
one.Bmi = one.Weight / ( one.Height * one.Height );
System.out.println("Your Bmi is " + one.Bmi);
one.Analysis();
}
}
以上是小弟很弱的程式碼，以身高輸入173 體重輸入 53...但計算出來都呈現53
計算式也沒有錯啊，檢查了好多次，不知道有大大可以為我解答這問題嗎？
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◆ From: 114.36.170.38
1F：→ ssccg:Int是整數，你用整數除出來Height都是1 01/23 01:03
2F：→ ssccg:計算式也有錯，括號括這樣會先Height除Height就變1了 01/23 01:04
3F：→ nhlsi:Height = 1 1*1還是1 01/23 01:18
4F：推 cowbaying:用浮點數計算後用decimalformat轉成看你要到小數幾位 01/23 01:18
5F：→ cowbaying:你用整數去除 沒有指定結果的話 預設是商數 01/23 01:20
感謝以上大大們的回答，小弟不才....研究了很久才知道改一下輸入那邊即可
import java.util.Scanner;
public class BmiTestDive {
public static void main (String[] args) {
Scanner scanner = new Scanner(System.in);
Bmi one = new Bmi();
System.out.println("Your Height");
one.Height = scanner.nextFloat()/100;
System.out.println("Your Weight");
one.Weight = scanner.nextFloat();
one.Bmi = one.Weight / ((one.Height * one.Height));
System.out.println("Your Bmi is " + one.Bmi);
one.Analysis();
}
}
※ 編輯: WeiMyWoW 來自: 114.36.170.38 (01/23 02:57)
6F：推 sk8er411:好特別的寫法，先new了一個one的物件，產生自Bmi類別， 03/11 22:32
7F：推 sk8er411:但是實際上在程式段裡卻看不到class Bmi，還是樓主只拿 03/11 22:34
8F：→ sk8er411:有main的出來討論？ 03/11 22:35