错误:找不到符号符号:变量A [英] Error: cannot find symbol symbol: variable A
本文介绍了错误:找不到符号符号:变量A的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试创建一种要在控制台中打印的工资单，但我从我的代码中收到以下错误.很多时候它真的只是一个错误，但我认为我没有足够的 Java 知识来自己修复它.
I am trying to create a sort of pay slip to print in the console but I receive the following errors from my code. Its really just one error many times, but I don't think I have enough knowledge of java to fix it on my own.
import java.io.*;
import java.text.*;
import java.util.Scanner;
class Assign2num2
{
public static void main (String [] args)
{
String famname, firstname;
double gross, deduct, tax, pay, hrs, ovtm;
char letter, yn;
Scanner in = new Scanner(System.in);
System.out.println("Please enter your family name and first name.");
famname = in.nextLine();
firstname = in.nextLine();
System.out.println("Please enter how much you are paid per hour and the amount of hours you worked this week. Enter overtime hours seperately please.");
pay = in.nextInt();
if (pay<0) {
System.out.println("You must enter a positive number or zero for your hourly pay.");
pay = in.nextInt();
}
else {
pay = pay;
}
hrs = in.nextInt();
if (hrs<0||hrs>40) {
System.out.println("You must enter a positive number less than or equal to 40, or zero for the amount of hours worked this week.");
hrs = in.nextInt();
}
else {
hrs = hrs;
}
ovtm = in.nextInt();
if (ovtm<0) {
System.out.println("You must enter a positive number or zero for your overtime hours worked.");
ovtm = in.nextInt();
}
else {
ovtm = ovtm;
}
gross = (pay*hrs) + ((pay*2)*ovtm);
System.out.println("Please enter a letter indicating your tax category: A is no tax deduction, B is 10% of gross pay, \nC is 20% of gross pay, D is 29% of gross pay, E is 35% of gross pay");
letter = in.next().charAt(0);
if (letter==A||letter==a){
letter = letter;
gross = gross;
}
else if (letter==B||letter==b){
letter = letter;
deduct = (gross*0.1);
tax = gross - deduct;
}
else if (letter==C||letter==c){
letter = letter;
deduct = (gross*0.2);
tax = gross - deduct;
}
else if (letter==D||letter==d){
letter = letter;
deduct = (gross*0.29);
tax = gross - deduct;
}
else if (letter==E||letter==e){
letter = letter;
deduct = (gross*0.35);
tax = gross - deduct;
}
else {
System.out.println("You must enter a letter between A and E.");
letter = in.next().charAt(0);
}
System.out.println("If you want $20.00 deducted from your weekly pay as a contribution to the \nUnited Way Charity, enter Y for yes. If not, enter N for no.");
yn = in.next().charAt(0);
if (letter==Y||letter==y||letter==N||letter==n){
yn = yn;
}
else {
System.out.println("You must enter either Y or N.");
yn = in.next().charAt(0);
}
if (yn==Y||yn==y) {
deduct = deduct + 20;
tax = tax - 20;
}
else {
deduct = deduct;
tax = tax;
System.out.println("PAY SLIP");
System.out.println("---------");
System.out.println(famname + ", " + firstname);
System.out.println("---------");
System.out.println("Gross Pay: " + gross);
System.out.println("---------");
System.out.println("Deductions: " + deduct);
System.out.println("---------");
System.out.println("Net Pay: " + tax);
}
}
}
16 errors found:
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 44]
Error: cannot find symbol
symbol: variable A
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 44]
Error: cannot find symbol
symbol: variable a
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 48]
Error: cannot find symbol
symbol: variable B
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 48]
Error: cannot find symbol
symbol: variable b
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 53]
Error: cannot find symbol
symbol: variable C
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 53]
Error: cannot find symbol
symbol: variable c
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 58]
Error: cannot find symbol
symbol: variable D
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 58]
Error: cannot find symbol
symbol: variable d
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 63]
Error: cannot find symbol
symbol: variable E
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 63]
Error: cannot find symbol
symbol: variable e
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 75]
Error: cannot find symbol
symbol: variable Y
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 75]
Error: cannot find symbol
symbol: variable y
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 75]
Error: cannot find symbol
symbol: variable N
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 75]
Error: cannot find symbol
symbol: variable n
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 82]
Error: cannot find symbol
symbol: variable Y
location: class Assign2num2
File: G:\Computer Science\Dr Java Exercises\Java Files\Assign2num2.java [line: 82]
Error: cannot find symbol
symbol: variable y
location: class Assign2num2
推荐答案
当您将变量与预期字符进行比较时，该字符必须用单引号括起来，否则编译器会认为它是另一个未定义的变量.
When you compare variables to an expected character, the character must be in single quotes, else the compiler thinks that it's another variable, which isn't defined.
例如改变
if (letter==A||letter==a){
到
if (letter=='A'||letter=='a'){
这篇关于错误:找不到符号符号:变量A的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
