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該程序假設將轉換輸入溫度。從華氏溫度到攝氏溫度。因此,如果輸入是212F,那麼它應該顯示:Java,將華氏溫度轉換爲攝氏溫度
212 deg. F = 100 deg. C
除了當我運行該程序的輸出始終爲「0攝氏度。」。有人能告訴我我在這裏做錯了嗎?我猜如果有什麼需要做的:
double fahrenheit = keyboard.nextDouble();
但即使如此,我不太清楚爲什麼。謝謝你的幫助!
import java.util.Scanner; //keyboard input
import java.text.DecimalFormat; //formatting
public class FahrenheitToCelsius {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
//User Input
System.out.println("Please enter temperature (Fahrenheit): ");
double fahrenheit = keyboard.nextDouble();
//Calculations
double celsius = (5/9) * (fahrenheit - 32);
//Formatting
DecimalFormat myFormatter = new DecimalFormat("#,###.##");
//Output
System.out.println("\n" + myFormatter.format(fahrenheit)
+ " deg. F = " + myFormatter.format(celsius) + " deg. C");
}
}
'(5/9)'使這個'(5.0/9)' – MartinS