我的程序中的所有內容似乎都能正常工作,但出於某些奇怪的原因,無論何時它會到達您選擇的輸入部分乘法或除法,然後終止程序,就好像它已完成一樣。我的意圖錯誤來自哪裏?
這是怎麼回事?
我試過將if(Choice.equals(Multiply))
更改爲「Multiply
」,對於另一個也是如此。
但沒有運氣。
這裏是我的代碼:
import java.util.Scanner;
public class APJAVAPROGRAM {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner numberinput = new Scanner(System.in);
Scanner stringinput = new Scanner(System.in);
System.out.print("Input a numerator >>>"); // inputs first Numerator
double Numerator = numberinput.nextDouble();
System.out.print("Input a Denominator >>>"); // Inputs first denominator
double Denominator = numberinput.nextDouble();
System.out.print("Input a second numerator >>>"); //Inputs second Numerator
double Numerator2 = numberinput.nextDouble();
System.out.print("Input a second Denominator >>>"); // Inputs second denominator
double Denominator2 = numberinput.nextDouble();
System.out.println("Your entered fractions are " + Numerator + "/" + Denominator + " and "+ Numerator2 + "/" + Denominator2);
// Will print out the entered fractions
System.out.println("What would you like to do with these?"); //asks user what should be done
System.out.print("Multipy, Divide, Add, or Subtract >>>");
String Choice = stringinput.nextLine();
double Multiply = Numerator * Numerator2;
double Multiply2 = Denominator * Denominator2;
if(Choice.equals("Multiply"))
{
System.out.println(Multiply + "/" + Multiply2 + " Is your answer.");
// If the input is multiply it will do as such
}
else
{
double Divide = Numerator * Denominator2;
double Divide2 = Numerator2 * Denominator;
if(Choice.equals("Divide"))
System.out.println(Divide + "/" + Divide2 + " Is your answer.");
}
}
}
您是否嘗試過使用調試器? –
我用eclipse中的一個,它沒有找到任何東西 –
我只是將你的代碼逐字地放在我的IntelliJ裏面的'main()'方法中,它運行良好。如果您有一個樣品,請張貼可複製的樣品。 –