Error Cannot Find Symbol Variable
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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 error cannot find symbol variable container Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation error cannot find symbol variable parse Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like error cannot find symbol variable ic_launcher you, helping each other. Join them; it only takes a minute: Sign up What does a “Cannot find symbol” compilation error mean? up vote 111 down vote favorite 38 Please explain the following about the "Cannot find symbol" error cannot find symbol variable activity_main 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 683k20524722692 asked Sep 7 '14 at 1:12 Stephen C 387k45411738 add a comment| 6 Answers 6 active oldest votes up vote 143 down vote accepted
Error Cannot Find Symbol Variable Android
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 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 o
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Error Cannot Find Symbol Variable Main
have Meta Discuss the workings and policies of this site About error cannot find symbol variable fullscreen_content Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting cannot find symbol variable length ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million http://stackoverflow.com/questions/25706216/what-does-a-cannot-find-symbol-compilation-error-mean programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Java Error: cannot find symbol yet the variables are declared? up vote 1 down vote favorite 1 import java.util.Scanner; public class Assignment1Q3 { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Please enter the first time: http://stackoverflow.com/questions/14595878/java-error-cannot-find-symbol-yet-the-variables-are-declared "); int fTime = in.nextInt(); System.out.print("Please enter second time: "); int lTime = in.nextInt(); int tDifference = Math.abs(fTime - lTime); String strTDiff = String.valueOf(tDifference); int length = strTDiff.length(); if (length == 4) { String hours = strTDiff.substring(0, 2); String minutes = strTDiff.substring(3, 5); } else if (length == 3) { String hours = strTDiff.substring(0); String minutes = strTDiff.substring(2, 4); } else { String hours = ("0"); String minutes = strTDiff.substring(0, 1); } System.out.println(hours + " hours " + minutes + " minutes"); } } Hey guys so im attempting to make a simple program using Java to find the difference between 2 times given in military time and to give the output in number of hours and minutes. Whenever i compile this in command prompt it gives me an error for the variable hours and the variable minutes in the last printing line saying "cannot find symbol". I thought trying to declare them before the if statement but that did not work e
got error "Cannot find symbol" I've read all questions related to this, but https://teamtreehouse.com/community/declaring-new-variable-and-got-error-cannot-find-symbol still I can't figure out how to solve this. My code https://coderanch.com/t/637126/java/java/find-symbol-compile-error - 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 cannot find 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 cannot find symbol :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 remov
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 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 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 receiving errors relating to my object reference variables, I'm sure you will see from the source code what I'm trying to achieve, also I must mention that I realise the program is overly complicated, my goal was to simply practice an object orientated approach rather than using the main method for everything). setUpCalc.java public class setUpCalc { public static void main(String [] args) { inou.numsToAdd(); inou.numsToOutput(); } } inputOutput.java import java.util.Scanner; public class inputOutput { inputOutput inou = new inputOutput(); public void numsToAdd() { Scanner intIn = new Scanner(System.in); System.out.print("Please enter two numbers"); c.addition() = intIn.nextInteger(); } public