Cannot Find Symbol Constructor Error Java
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Java Compile Error Cannot Find Symbol Constructor
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Cannot Find Symbol Error In Java Interface
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack constructor cannot find symbol java Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up “Cannot find symbol symbol : constructor …” in Java? up vote 3 down vote favorite I have a class defined as follows... public class df { String dt; String java constructor example datestring; public String df(String dtstring) throws Exception { dt=dtstring; SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); Date inpdate = formatter.parse(dt); datestring = formatter.format(inpdate); Date outpdate = formatter.parse(datestring); SimpleDateFormat newformatter = new SimpleDateFormat("dd/MM/yyyy"); datestring = newformatter.format(outpdate); return datestring; } } I create instances of this class as follows, where rsnpos.getString(1) contains a date in yyyy-MM-dd format (e.g. 2010-01-01)... new df(rsnpos.getString(1)) During compilation, I am getting the following error... cannot find symbol symbol : constructor df(java.lang.String) location: class df I don't understand why this is happening, as I have defined a constructor as shown in my code. Could someone please assist me with this problem. java constructor syntax-error share|improve this question edited Apr 18 '12 at 2:54 WATTO Studios 7,216103045 asked Apr 17 '12 at 22:19 ARNAB2012 13712 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote accepted That's not a constructor... (constructors have an implicit "return type", the type of th
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Constructor In Java
the company Business Learn more about hiring developers or posting 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 programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Java: cannot find symbol (constructor) up vote 2 down vote favorite newbie doing Java homework here. I have http://stackoverflow.com/questions/10200034/cannot-find-symbol-symbol-constructor-in-java one class named Album which contains the following constructors: public class Album { private String title; private String artist; private String genre; private Song favoriteTrack; private int trackNumber; private static int numAlbums; //Constructors public Album(String title, Song favoriteTrack, int trackNumber) { this.title = title; this.favoriteTrack = favoriteTrack; this.trackNumber = trackNumber; artist = favoriteTrack.getArtist(); genre = favoriteTrack.getGenre(); numAlbums++; } public Album(String title, Song favoriteTrack) { this(title, favoriteTrack, 1); } ...} And then I http://stackoverflow.com/questions/9321547/java-cannot-find-symbol-constructor have a second class MusicCollection which instantiates the Album class thrice, within its main method... public static void main (String[] args) {... Album album1 = new Album("Debut", "Venus as a Boy", 3); Album album2 = new Album("Homework", "Around the World", 7); Album album3 = new Album("Ghost in the Machine", "Invisible Sun", 3); ...} However, when I attempt to compile MusicCollection.java, I get the error: cannot find symbol symbol : constructor Album(java.lang.String,java.lang.String,int) location : class Album for each time I try to call the constructor. The classes Album and MusicCollection ARE in the same directory, and Album.java compiles. I imagine I'm doing something silly, but I can't figure this out. Any help would be much appreciated! java constructor compiler-errors share|improve this question edited Feb 17 '12 at 1:10 Jivings 16.3k43172 asked Feb 17 '12 at 1:07 Christina Kirkman 1815 Asking for homework help is fine, but remember to include the homework tag. –Jivings Feb 17 '12 at 1:11 Alrighty, I will remember that. –Christina Kirkman Feb 17 '12 at 1:17 add a comment| 4 Answers 4 active oldest votes up vote 6 down vote accepted The second argument of the constructor you defined is Song, not String, but in your main, you try to instantiate it with a String as a secon
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 http://stackoverflow.com/questions/510784/inheritance-in-java-cannot-find-symbol-constructor this site About Us Learn more about Stack Overflow the company Business Learn https://coderanch.com/t/551376/java/java/find-symbol-constructor-error-extending more about hiring developers or posting 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 programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Inheritance cannot find in Java - “Cannot find symbol constructor” up vote 10 down vote favorite 3 I'm working on a class that inherits from another class, but I'm getting a compiler error saying "Cannot find symbol constructor Account()". Basically what I'm trying to do is make a class InvestmentAccount which extends from Account - Account is meant to hold a balance with methods for withdrawing/depositing cannot find symbol money and InvestmentAccount is similar, but the balance is stored in shares with a share price determining how many shares are deposited or withdrawn given a particular amount of money. Here's the first few lines (around where the compiler pointed out the problem) of the subclass InvestmentAccount: public class InvestmentAccount extends Account { protected int sharePrice; protected int numShares; private Person customer; public InvestmentAccount(Person customer, int sharePrice) { this.customer = customer; sharePrice = sharePrice; } // etc... The Person class is held in another file (Person.java). Now here's the first few lines of the superclass Account: public class Account { private Person customer; protected int balanceInPence; public Account(Person customer) { this.customer = customer; balanceInPence = 0; } // etc... Is there any reason why the compiler isn't just reading the symbol constructor for Account from the Account class? Or do I need to define a new constructor for Account within InvestmentAccount, which tells it to inherit everything? Thanks java inheritance polymorphism share|improve this question edited Feb 7 '13 at 10:48 charles 4,95824286 asked Feb 4 '09 at 10:19 benwad 2,70253570 add a comment| 5 Answers 5 active oldest votes
New Topic programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums Forum: Beginning Java cannot find symbol - constructor error while extending a class Joy Vergis Ranch Hand Posts: 54 posted 5 years ago I am trying inheritance. Created a class Box with no default constructor. BoxWeight extends Box. BoxWeight has no default constructor defined. When I try Shipment extends BoxWeight, I get error"cannot find symbol - constructor BoxWeight()". Why I donot get this error when BoxWeight extends Box. class Box{ private double width,height,depth; /*Box(){ width=-1; depth=-1; height=-1; }*/ Box(double w,double h,double d){ width= w; height= h; depth= d; } Box(Box ob){ width= ob.width; depth= ob.depth; height= ob.height; } void vol(){ System.out.println(width*height*depth); } } class BoxWeight extends Box{ double weight; BoxWeight(double w,double h,double d,double g){ super(w,h,d); weight= g; } BoxWeight(BoxWeight obw){ super(obw); weight=obw.weight; } class Shipment extends BoxWeight{ //cannot find symbol - constructor BoxWeight() } } public class DemoBoxWeight { public static void main(String[] args){ // Box b1= new Box(); //Box b2= new Box(b1); BoxWeight bw1=new BoxWeight(1.0, 1.0, 1.0, 2.0); /* boolean true1= (b1.equals(b2)); System.out.println(true1); if(b1==b2) System.out.println("== operator is true"); else System.out.println("== operator is false"); b1.vol(); */ } } Request your assistance. Campbell Ritchie Sheriff Posts: 50355 81 posted 5 years ago Please use four spaces for indenting. Use {} after every if, else, do, while, for and catch keyword. Always use one space before and one space after every binary operator (similarly with four spaces for the ternary operator).class Box { private double width,height,depth; Box() { width=-1; depth=-1; height=-1; } Box(double w,double h,double d) { width= w; height= h; depth= d; } Box(Box ob) { width= ob.width; depth= ob.depth; height= ob.height; } void vol() { System.out.println(width*height*depth); } } class BoxWeight extends Box { double weight; BoxWeight(double w,double h,double d,double g) { super(w,h,d); weight= g; } BoxWeight(BoxWeight obw) { super(obw); weight=obw.weight; } } //class Shipment extends BoxWeight //{ //cannot find symbol - constr