我输入了这个java程序来计算Eclipse中的简单兴趣。
import java.util.Scanner;
public class PercentageCalculator
{
public static void main(String[] args)
{
double x = 0;
double y = 0;
Scanner scanner = new
Scanner(System.in);
System.out.println("Enter the value of x: ");
x = scanner.nextDouble();
System.out.println("Enter the value of y: ");
y = scanner.nextDouble();
System.out.println();
System.out.println("Calculating percentage: (x % of y): ");
System.out.println(x + " % of" + y + "is " + result);
System.out.println();
}
}
但是当我试图运行它时,它给了我这样的信息:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
result cannot be resolved to a variable
at PercentageCalculator.main(PercentageCalculator.java:19)
这是什么意思,我该如何解决?
答案 0 :(得分:2)
声明结果变量
double result = 0;
然后计算百分比并将其分配给结果变量。
result = your calculation;
然后打印
System.out.println(x + " % of" + y + "is " + result);
希望这会有所帮助:)
答案 1 :(得分:0)
您尚未声明结果变量
double result=0;