Java Can';无法正确显示百分比
我似乎无法正确显示我的百分比。每次循环时,它总是显示Java Can';无法正确显示百分比,java,Java,我似乎无法正确显示我的百分比。每次循环时,它总是显示0.0。代码中的其他所有内容似乎都能正常工作 我可能错过了一些显而易见的东西,但对于Java,我有点不知所措,因此非常感谢您的帮助 package e2E3; import java.util.Scanner; public class Main { public static void calculatePercentage(int studentMark, int maxMark){ double percent
0.0
。代码中的其他所有内容似乎都能正常工作
我可能错过了一些显而易见的东西,但对于Java,我有点不知所措,因此非常感谢您的帮助
package e2E3;
import java.util.Scanner;
public class Main {
public static void calculatePercentage(int studentMark, int maxMark){
double percentage;
percentage = studentMark / maxMark * 100;
System.out.println("%" + percentage);
}
public static void totalAndAverageMark(){
Scanner userInput = new Scanner(System.in);
int numberOfStudents = 0;
int maxMark = 0;
int totalMark = 0;
int studentCount = 0;
int studentMark = 0;
int average = 0;
System.out.println("how many Students Sat the Test?");
numberOfStudents = userInput.nextInt();
System.out.println("what is the Maximum score?");
maxMark = userInput.nextInt();
do {
System.out.println("enter students score..");
studentMark = userInput.nextInt();
calculatePercentage(studentMark, maxMark);
totalMark = totalMark + studentMark;
studentCount = studentCount + 1;
} while (studentCount != numberOfStudents);
average = totalMark / numberOfStudents;
System.out.println("The Average Grade of Students was.. " + average);
}
public static void main(String[] args) {
totalAndAverageMark();
}
}
您正在除以整数,因此结果总是一个整数值。您可以将studentMark声明为double,它将按预期工作。如果你不想这样做,你可以在
(double)studentMark/maxMark*100中将其转换为double代码>