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Cannot find symbol error when calling methods in an extended JButton class


Cannot find symbol error when calling methods in an extended JButton class

By : user2949617
Date : November 17 2020, 01:00 AM
around this issue setUpButton is a custom method of ButtonDefault not JButton. Therefore the array declaration should be
code :
private ButtonDefault[][] buttons = new ButtonDefault[ROWS][COLUMNS];


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cannot find symbol in JLabel extended class

cannot find symbol in JLabel extended class


By : Bhavani
Date : March 29 2020, 07:55 AM
I wish this helpful for you Is this not valid? , The method addActionListener is not available for JLabel components.
Abstract Error with JButton and Cannot Find Symbol on interface class

Abstract Error with JButton and Cannot Find Symbol on interface class


By : Amit
Date : March 29 2020, 07:55 AM
it helps some times I'm working on a simple Java GUI, but an error came out about abstract methods. I marked the codes that has an error with a comment ERROR - etc. The interface class is at the bottom, which also has an error about cannot find symbol. It is marked.
code :
public interface ActionListener {

    public void actionPerformed(ActionEvent e);
}
import java.awt.event.ActionEvent;

public interface ActionListener {

    //ERROR - Cannot find symbol
    //symbol: class Action Event
    public void actionPerformed(ActionEvent e);
}
import java.awt.event.*;

public abstract class OurActionListener implements ActionListener {

    public abstract void actionPerformed(ActionEvent e);
}
Cannot find symbol in extended class

Cannot find symbol in extended class


By : cyrilevan
Date : March 29 2020, 07:55 AM
it fixes the issue Hello I have two classes into the package "pack3" One is the extension of the other one. The "Up" class is:
code :
return k+", "+super.ToString();  
Cant seem to get my Jbutton to lock. Error: Cannot find symbol

Cant seem to get my Jbutton to lock. Error: Cannot find symbol


By : aarinero
Date : March 29 2020, 07:55 AM
around this issue This is my source code for a tic tak toe game I am trying to make, what I would like to happen is for a player to press a Jbutton then have the button disabled. I am aware that the command is setEnbale(false) in order for it to lock, but it is not working for me. I have 9 buttons with action listener assigned to them. The program is able to distinguish between player 1 and 2 through the action listener. But when I try to lock the cells as well the " error : can not find symbol some up. " come up. What exactlyam I doing wrong? , Use,
whatPlayer.setEnabled(b) not whatPlayer.setEnable(b)
Set method cannot find symbol in extended class?

Set method cannot find symbol in extended class?


By : Reymond Jaron
Date : March 29 2020, 07:55 AM
I hope this helps . For as far as I can see the problem is in your constructor and not in your setters. Parameters and used names don't match -> nh is nHours ( in params ) and w = wages (in params )
Change to constructor should be made to:
code :
public PTEmployee(String name, String ssn, String position, Date dateOfBirth,
                 float pay, int nHours, float wages)
{
    super(name,ssn,position,dateOfBirth,pay);
    this.nHours = nHours;
    this.wages = wages;
    pay = 0;
}
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