Cannot Find Symbol Java Compile Error
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Java Compile Error Cannot Find Symbol Constructor
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Maven Compile Error Cannot Find Symbol
them; it only takes a minute: Sign up What does a “Cannot find symbol” compilation error mean? up vote 110 down vote favorite 38 Please explain the following about the "Cannot find symbol" error: What does this error mean? What error cannot find symbol javac things can cause this error? How does the programmer go about fixing this error? This question is designed to be a comprehensive question about "cannot find symbol" compilation errors in Java. java compiler-errors cannot-find-symbol share|improve this question edited Feb 27 at 17:29 BalusC 682k20324712691 asked Sep 7 '14 at 1:12 Stephen C 386k44410738 add a comment| 6 Answers 6 active oldest votes up vote 141 down vote accepted 1. What does a "Cannot find symbol" error mean? Firstly, it jgrasp cannot find symbol is a compilation error1. It means that either there is a problem in your Java source code, or there is a problem in the way that you are compiling it. Your Java source code consists of the following things: Keywords: like true, false, class, while, and so on. Literals: like 42 and 'X' and "Hi mum!". Operators and other non-alphanumeric tokens: like +, =, {, and so on. Identifiers: like Reader, i, toString, processEquibalancedElephants, and so on. Comments and whitespace. A "Cannot find symbol" error is about the identifiers. When your code is compiled, the compiler needs to work out what each and every identifier in your code means. A "Cannot find symbol" error means that the compiler cannot do this. Your code appears to be referring to something that the compiler doesn't understand. 2. What can cause a "Cannot find symbol" error? As a first order, there is only one cause. The compiler looked in all of the places where the identifier should be defined, and it couldn't find the definition. This could be caused by a number of things. The common ones are as follows: For identifiers in general: Perhaps you spelled the name incorrectly; i.e. StringBiulder instead of StringBuilder. Java cannot and will not attempt to compensate for bad spelling or typing errors. Perhaps you got the case wrong; i.e. stringBuilder instead of StringBuilder. All Java identifiers are case sensitive. Perhaps y
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Netbeans Cannot Find Symbol
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Java Error Cannot Find Symbol Variable
Thanks in advance for your help. I'm a Java newbie and am having trouble compiling this program. Here's what I have so far: 2 Classes: 1. http://stackoverflow.com/questions/25706216/what-does-a-cannot-find-symbol-compilation-error-mean Test.java (main class) 2. Customer.java (instantiable class) Path Variable: C:\Program Files\Java\jdk1.5.0_06\bin Code: **************************************************************** (Customer.java) class Customer { private String customerID; private String firstName; private String lastName; private String address; private String emailAddress; private int age; private boolean hasCollegeEd; private double gradePointAverage; private boolean accidentStatus; private double surcharge; public Customer(String c_id, String f_name, String l_name, https://coderanch.com/t/402221/java/java/Compiler-Error-find-symbol String add, String email, int a, boolean col_ed, double gpa, boolean a_status) { customerID = c_id; firstName = f_name; lastName = l_name; address = add; emailAddress = email; age = a; hasCollegeEd = col_ed; gradePointAverage = gpa; accidentStatus = a_status; } public double calculateSurcharge(int a, boolean a_status, boolean c_ed, double gpa) { return surcharge; } public void display() { System.out.println("**** ABC Insurance Co. ****"); System.out.println("Customer ID: " + customerID); System.out.println("Surcharge: %" + surcharge); } } ************************************************************ (Test.java) class Test { public static void main(String[] args) { Customer cust1 = new Customer("235678", "John", "Doe", "1313 Mockingbird Ln", "email address", 20, false, 0.0, true); cust1.calculateSurcharge(20, true, false, 0.0); cust1.display(); } } ********************************************************************** When I go and compile this at the command line: javac *.java (inside of my directory) I receive this error: Test.java:3: cannot find symbol symbol : constructor Customer(java.lang.String, java.lang.String, java.lang.String, java.lan.String, java.lang.String, int, boolean, double, boolean) location class: Customer Customer cust1 = new Customer("1234","John","Doe", "1313 Mockingbird Ln.",
expression incompatible types invalid method declaration; return type required java.lang.ArrayIndexOutOfBoundsException:
symbol Hi!i try to find what i'm doing wrong but i can't,in the question : print out using the color of the new object,using the getColor method. The error appears is:can't find symbol and the warning is at c from first word color. Here is my code: public class Example { public static void main(String[] args) { System.out.println("We are going to create a GoKart"); GoKart goKartObject = new GoKart("red"); System.out.printf("New GoKart is %s\n", color.getColor()); } } Example.java public class Example { public static void main(String[] args) { System.out.println("We are going to create a GoKart"); GoKart goKartObject = new GoKart("red"); System.out.printf("New GoKart is %s\n", color.getColor()); } } 4 Answers MOD William Li Treehouse Moderator 23,742 Points William Li William Li Treehouse Moderator 23,742 Points over 1 year ago color.getColor() is where the problem is. Because you never created an object named color, your GoKart object's name is goKartObject, so change it to goKartObject.getColor() instead. STAFF Ken Alger Treehouse Staff Ken Alger Ken Alger Treehouse Staff over 1 year ago Eleni; Welcome to Treehouse! As William pointed out, you were making reference to an undefined object, and you got your mistake taken care of. That's great. If you don't mind I would like to expand a bit on the error in general just to help prevent it (or minimize it) in the future. I say that, but they still happen to the best programmers out there from time to time. Using a language specific (Java) development environment such as IntelliJ or Eclipse helps to reduce the errors at run time, but let's take a look at them. To start with when a Java program is compiled, the compiler looks at various things and it can either identify them or not. Things such as: Keywords: class, private, for, etc. Operators and tokens: [, <, *, etc. Comments and whitespace Literals: 121, X, "Hello World!", etc. Identifiers: j, toString, GoKart, saveMemeToDatabase, etc. As the compiler is going through the code it will find something and know what to do with it or not. Your Cannot find symbol error relates to the identifiers and means that Java cannot figure out what the "symbol" means. What then causes a "Cannot find symbol" error? Basically as the compiler is doing it's job, you are asking it to do something with a symbol it cannot define. Think of taking a test in grammar school in which you have to define words. Cat: a furry little feline house pet. Car: an enclosed motorized form of transportatio