求助，Java代码调试出现error: cannot find symbol，怎么修改？

答案:3 悬赏:40

解决时间 2021-04-28 06:54

提问者网友：心裂忍耐
2021-04-27 09:53

import javax.swing.JOptionPane;

public class Project3
{
public static void main ( String [] args )
{
double charges, savings_B, savings_C;
char pakge;
int hours;
String input;

input = JOptionPane.showInputDialog("Please enter the letter of the package the customer has purchased(ex: A,B or C): ");
pakge = Char.parseChar(input); error: cannot find symbol

input = JOptionPane.showInputDialog("Please enter the number of hours that were used: ");
hours = Int.parseInt(input); error: cannot find symbol

if (pakge == 'A')
{
if (hours <= 10)
{
charges = 9.95;
savings_B = charges - 13.95;
savings_C = charges - 19.95;
}
else if (hours > 10 && hours <=20)
{
charges = 9.95 + 2*(hours - 10);
savings_B = charges - 13.95;
savings_C = charges - 19.95;
}
else
{
charges = 9.95 + 2*(hours - 10);
savings_B = charges - (13.95 + 1*(hours - 20));
savings_C = charges - 19.95;
}
JOptionPane.showMessageDialog(null, "The total charges are: " + charges);
}
}
}
要怎么修改呢？

最佳答案

二级知识专家网友：一只傻青衣
2021-04-27 11:33

java是区分大小写的，试试把下面错误改正一下。
string 应为string
system.out.println应为system.out.println

全部回答

1楼网友：眠于流年
2021-04-27 13:47

double charges, savings_B, savings_C; char pakge; int hours; String input; input = JOptionPane.showInputDialog("Please enter the letter of the package the customer has purchased(ex: A,B or C): "); pakge = input.toCharArray()[0]; // 这样修改 input = JOptionPane.showInputDialog("Please enter the number of hours that were used: "); hours = Integer.parseInt(input); // 这样修改 if (pakge == 'A') { if (hours <= 10) { charges = 9.95; savings_B = charges - 13.95; savings_C = charges - 19.95; } else if (hours > 10 && hours <=20) { charges = 9.95 + 2*(hours - 10); savings_B = charges - 13.95; savings_C = charges - 19.95; } else { charges = 9.95 + 2*(hours - 10); savings_B = charges - (13.95 + 1*(hours - 20)); savings_C = charges - 19.95; } JOptionPane.showMessageDialog(null, "The total charges are: " + charges);

2楼网友：何必打扰
2021-04-27 12:31

pakge = Char.parseChar(input); hours = Int.parseInt(input); 这2个是c#的用法。应改为： pakge = input.toCharArray()[0]; hours = Integer.parseInt(input);

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