Cannot Find Symbol Variable Error In Java
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Cannot Find Symbol Error In Java Interface
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Java Error Cannot Find Symbol Class
Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What does a “Cannot find symbol” compilation error mean? up vote
Java Error Cannot Find Symbol Method
110 down vote favorite 38 Please explain the following about the "Cannot find symbol" error: What does this error mean? What 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 java error cannot find symbol arraylist 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 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 co
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business java error cannot find symbol file Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation java error cannot find symbol ioexception Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like java error cannot find symbol scanner you, helping each other. Join them; it only takes a minute: Sign up “cannot find symbol: variable input” error up vote 0 down vote favorite Here is the code where I'm having trouble: import java.util.*; public class Game http://stackoverflow.com/questions/25706216/what-does-a-cannot-find-symbol-compilation-error-mean { public static final int ROCK = 1; public static final int PAPER = 2; public static final int SCISSORS = 3; public static void main(String[] args) { Scanner input = new Scanner(System.in); String name = intro(); int numRounds = numRounds(name); game(name, numRounds); } public static String intro() { System.out.println("Welcome to Rock Paper Scissors. I, the computer, will be your opponent."); System.out.print("Please type in your name and press return: "); String name = input.nextLine(); return http://stackoverflow.com/questions/6526022/cannot-find-symbol-variable-input-error name; } public static int numRounds(String name) { System.out.println("Welcome " + name + "."); System.out.println("All right " + name + ". How many games would you like to play?"); System.out.print("Enter the number of rounds you want to play and press return: "); int numRounds = input.nextInt(); return numRounds; } When I use the scanner to get the values for the user's name and number of rounds they'd like to play, I get the error. I just want to return these values for use in the main function. Any help would be appreciated. java share|improve this question edited Jun 29 '11 at 19:30 Bozho 383k82771944 asked Jun 29 '11 at 19:19 Dennis 1235 Where's the implementation of the game method? –Chris Thompson Jun 29 '11 at 19:23 add a comment| 4 Answers 4 active oldest votes up vote 2 down vote accepted There is no input variable in the two methods that you want it - pass it as a methhod argument: public static String intro(Scanner input) { .. } public static int numRounds(String name, Scanner input) { .. } ... String name = intro(input); int numRounds = numRounds(name, input); Apart from that, there is no game() method - define it. share|improve this answer edited Jun 29 '11 at 21:36 answered Jun 29 '11 at 19:22 Bozho 383k82771944 i have the
have Jeremy Kubica on-line!See this thread for details. Win a copy of The CS Detective: An Algorithmic Tale of Crime, Conspiracy, and Computation this week in the Performance forum! Post Reply Bookmark https://coderanch.com/t/637126/java/java/find-symbol-compile-error Topic Watch Topic New Topic programming forums Java Java JSRs Mobile Certification Databases Caching https://teamtreehouse.com/community/declaring-new-variable-and-got-error-cannot-find-symbol Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: Beginning Java cannot find symbol compile error David Thompkins Greenhorn Posts: 17 posted 2 years ago Hello everyone, I've decided to register to the forum as I've become increasingly aware of the friendly community here! I'm totally new to programming cannot find altogether and after almost reaching half way in the 'Head first java' book I decided to try and apply some of what I've learnt so far and write my first 'Object orientated' program. As this is pretty much the first program I've ever written, I decided to write a program to ask for two integers and add them both together and then present them to the user (the cannot find symbol goal eventually being a basic fully working command line calculator with +,-,* and /. I'm expecting many compile errors but not the following errors below (which I need help with). I have three .java files contained within a folder and after trying to figure out how to compile all three files (as they use one another) all at once, I came across this ---> javac *.java so I typed this in the command line whilst in the directory containing the three files assuming *.java is the best approach and then I receive the following errors: inputOutput.java:10: error: cannot find symb c.addition() = intIn.nextInteger(); ^ symbol: variable c location: class inputOutput inputOutput.java:10: error: cannot find symb c.addition() = intIn.nextInteger(); ^ symbol: method nextInteger() location: variable intIn of type Scanner inputOutput.java:14: error: cannot find symb int displayThis = c.getTotal(); ^ symbol: variable c location: class inputOutput setUpCalc.java:3: error: cannot find symbol inou.numsToAdd(); ^ symbol: variable inou location: class setUpCalc setUpCalc.java:4: error: cannot find symbol inou.numsToOutput(); ^ symbol: variable inou location: class setUpCalc 5 errors ...and here is the source code from each .java file (like I said I'm expecting a lot of errors but first I need to understand why I'm
got error "Cannot find symbol" I've read all questions related to this, but still I can't figure out how to solve this. My code - PezDispenser.java: public class PezDispenser { // creating an object with size 12 // final = no one can change this value public final int MAX_PEZ = 12; // private = if you are not the class you can access this use get method private String mCharacterName; // making a contractor with 1 argument public PezDispenser(String characterName) { // Use of "m" before characterName to define it as a member mCharacterName = characterName; } // properties public String getCharacterName() { return mCharacterName; } // jave-repl // :load - explore object by loading X.java file such as :load PezDispenser.java } Exmaple.java public class Example { public static void main(String[] args) { // Your amazing code goes here... System.out.println("We are a making a new Pez Dispenser."); PezDispenser dispenser = new PezDispenser("Yael"); System.out.printf("This dispenser character is %s\n", dispenser.getCharacterName()); } } when using java-repl, loading works fine, creating new variable throw this error: We are a making a new Pez Dispenser. This dispenser character is Test treehouse:~/workspace$ java-repl Welcome to JavaREPL version 272 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_20) Type expression to evaluate, :help for more options or press tab to auto-complete. java> :load PezDispenser.java Loaded source file from PezDispenser.java java> PezDispenser pd = new PezDispenser("Yoda"); ERROR: cannot find symbol symbol: class PezDispenser location: interface Evaluation PezDispenser method$9l7qv3fwog5xcmz8jehb(); ^ Please help 3 Answers Michael McDonald 2,876 Points Michael McDonald Michael McDonald 2,876 Points over 1 year ago I think you uncovered a bug in the teamtreehouse java-repl. I got the same errors as you until I removed your //comments. Comments shouldn't matter but apparently the repl misread your code because of them. Soumyadeep Mukhopadhyay 1,612 Points S