How to get values from text fields and use them in another class?

I have a GUI that allows a user to enter their personal information. I want to get all that information and use it in another class to create an instance of that person. I keep getting

non-static method getValues(String, String...) cannot be referenced from a static context

even though none of my methods are static.

I have tried to use individual getters for each text field, but that gave the same error. I also tried to get each value through one method and then call it in the other class but that doesn't work either.

In this class I am trying to get the values from the GUI:

public class PatientStrategy implements IAccountStrategy {



@Override

public void createAccount(String accountType, String firstname, String lastname,

          String address, String postcode, String sex, Integer age){

    PMSGUI.getValues(accountType, firstname, lastname, address, postcode, sex, age);

}

And this is the method I'm using in the GUI itself to get the values from the text fields:

public class PMSGUI extends javax.swing.JFrame {



public void getValues(String accountType, String firstname, String lastname, String address,

                      String postcode, String sex, Integer age) {

    accountType = cboAccountType.getSelectedItem().toString();

    firstname = txtFirstName.getText();

    lastname = txtLastName.getText();

    address = txtAddress.getText();

    postcode = txtPostcode.getText();

    sex = cboSex.getSelectedItem().toString();

    age = Integer.parseInt(txtAge.getText());

}

I am using an observer and strategy pattern and so I will be taking the values from the GUI and will be creating a new instance of each person as an observer.

I'm new to programming in Java and so I know I'm probably going about this all wrong. Any help is appreciated!

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

Using PMSGUI.getValues is exactly where you are trying to access a non-static method in a static context. To access a method, you have to create an instance and use the method with that instance.

– RealSkeptic
Jan 1 at 17:25

Thanks for the reply. What do you mean by create an instance of the method exactly?

– Top Lit
Jan 1 at 17:29

Create an instance of the class, not of the method. Use new PMSGUI() somewhere. I'm sure you already have an instance or the GUI would not be shown.

– RealSkeptic
Jan 1 at 17:32

Oh I see. Would creating a new instance of the GUI reset all the values in the text field then, or does it create an instance while keeping the inputted values? Sorry if I'm looking at this the wrong way.

– Top Lit
Jan 1 at 17:35

You are supposed to use the same instance that you are using already, otherwise you'll have two GUIs appear.

– RealSkeptic
Jan 1 at 17:41

|
show 3 more comments

I have a GUI that allows a user to enter their personal information. I want to get all that information and use it in another class to create an instance of that person. I keep getting

non-static method getValues(String, String...) cannot be referenced from a static context

even though none of my methods are static.

In this class I am trying to get the values from the GUI:

public class PatientStrategy implements IAccountStrategy {



@Override

public void createAccount(String accountType, String firstname, String lastname,

          String address, String postcode, String sex, Integer age){

    PMSGUI.getValues(accountType, firstname, lastname, address, postcode, sex, age);

}

And this is the method I'm using in the GUI itself to get the values from the text fields:

public class PMSGUI extends javax.swing.JFrame {



public void getValues(String accountType, String firstname, String lastname, String address,

                      String postcode, String sex, Integer age) {

    accountType = cboAccountType.getSelectedItem().toString();

    firstname = txtFirstName.getText();

    lastname = txtLastName.getText();

    address = txtAddress.getText();

    postcode = txtPostcode.getText();

    sex = cboSex.getSelectedItem().toString();

    age = Integer.parseInt(txtAge.getText());

}

I am using an observer and strategy pattern and so I will be taking the values from the GUI and will be creating a new instance of each person as an observer.

I'm new to programming in Java and so I know I'm probably going about this all wrong. Any help is appreciated!

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

Using PMSGUI.getValues is exactly where you are trying to access a non-static method in a static context. To access a method, you have to create an instance and use the method with that instance.

– RealSkeptic
Jan 1 at 17:25

Thanks for the reply. What do you mean by create an instance of the method exactly?

– Top Lit
Jan 1 at 17:29

Create an instance of the class, not of the method. Use new PMSGUI() somewhere. I'm sure you already have an instance or the GUI would not be shown.

– RealSkeptic
Jan 1 at 17:32

Oh I see. Would creating a new instance of the GUI reset all the values in the text field then, or does it create an instance while keeping the inputted values? Sorry if I'm looking at this the wrong way.

– Top Lit
Jan 1 at 17:35

You are supposed to use the same instance that you are using already, otherwise you'll have two GUIs appear.

– RealSkeptic
Jan 1 at 17:41

|
show 3 more comments

I have a GUI that allows a user to enter their personal information. I want to get all that information and use it in another class to create an instance of that person. I keep getting

non-static method getValues(String, String...) cannot be referenced from a static context

even though none of my methods are static.

In this class I am trying to get the values from the GUI:

public class PatientStrategy implements IAccountStrategy {



@Override

public void createAccount(String accountType, String firstname, String lastname,

          String address, String postcode, String sex, Integer age){

    PMSGUI.getValues(accountType, firstname, lastname, address, postcode, sex, age);

}

And this is the method I'm using in the GUI itself to get the values from the text fields:

public class PMSGUI extends javax.swing.JFrame {



public void getValues(String accountType, String firstname, String lastname, String address,

                      String postcode, String sex, Integer age) {

    accountType = cboAccountType.getSelectedItem().toString();

    firstname = txtFirstName.getText();

    lastname = txtLastName.getText();

    address = txtAddress.getText();

    postcode = txtPostcode.getText();

    sex = cboSex.getSelectedItem().toString();

    age = Integer.parseInt(txtAge.getText());

}

I am using an observer and strategy pattern and so I will be taking the values from the GUI and will be creating a new instance of each person as an observer.

I'm new to programming in Java and so I know I'm probably going about this all wrong. Any help is appreciated!

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

I have a GUI that allows a user to enter their personal information. I want to get all that information and use it in another class to create an instance of that person. I keep getting

non-static method getValues(String, String...) cannot be referenced from a static context

even though none of my methods are static.

In this class I am trying to get the values from the GUI:

public class PatientStrategy implements IAccountStrategy {



@Override

public void createAccount(String accountType, String firstname, String lastname,

          String address, String postcode, String sex, Integer age){

    PMSGUI.getValues(accountType, firstname, lastname, address, postcode, sex, age);

}

And this is the method I'm using in the GUI itself to get the values from the text fields:

public class PMSGUI extends javax.swing.JFrame {



public void getValues(String accountType, String firstname, String lastname, String address,

                      String postcode, String sex, Integer age) {

    accountType = cboAccountType.getSelectedItem().toString();

    firstname = txtFirstName.getText();

    lastname = txtLastName.getText();

    address = txtAddress.getText();

    postcode = txtPostcode.getText();

    sex = cboSex.getSelectedItem().toString();

    age = Integer.parseInt(txtAge.getText());

}

I am using an observer and strategy pattern and so I will be taking the values from the GUI and will be creating a new instance of each person as an observer.

I'm new to programming in Java and so I know I'm probably going about this all wrong. Any help is appreciated!

java swing

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

edited Jan 1 at 19:18

Kод it

2,67342240

edited Jan 1 at 19:18

Kод it

2,67342240

edited Jan 1 at 19:18

Kод it

2,67342240

asked Jan 1 at 17:18

Top Lit

327

asked Jan 1 at 17:18

Top Lit

327

asked Jan 1 at 17:18

Top Lit

327

Using PMSGUI.getValues is exactly where you are trying to access a non-static method in a static context. To access a method, you have to create an instance and use the method with that instance.

– RealSkeptic
Jan 1 at 17:25

Thanks for the reply. What do you mean by create an instance of the method exactly?

– Top Lit
Jan 1 at 17:29

Create an instance of the class, not of the method. Use new PMSGUI() somewhere. I'm sure you already have an instance or the GUI would not be shown.

– RealSkeptic
Jan 1 at 17:32

Oh I see. Would creating a new instance of the GUI reset all the values in the text field then, or does it create an instance while keeping the inputted values? Sorry if I'm looking at this the wrong way.

– Top Lit
Jan 1 at 17:35

You are supposed to use the same instance that you are using already, otherwise you'll have two GUIs appear.

– RealSkeptic
Jan 1 at 17:41

|
show 3 more comments

Using PMSGUI.getValues is exactly where you are trying to access a non-static method in a static context. To access a method, you have to create an instance and use the method with that instance.

– RealSkeptic
Jan 1 at 17:25

Thanks for the reply. What do you mean by create an instance of the method exactly?

– Top Lit
Jan 1 at 17:29

Create an instance of the class, not of the method. Use new PMSGUI() somewhere. I'm sure you already have an instance or the GUI would not be shown.

– RealSkeptic
Jan 1 at 17:32

Oh I see. Would creating a new instance of the GUI reset all the values in the text field then, or does it create an instance while keeping the inputted values? Sorry if I'm looking at this the wrong way.

– Top Lit
Jan 1 at 17:35

You are supposed to use the same instance that you are using already, otherwise you'll have two GUIs appear.

– RealSkeptic
Jan 1 at 17:41

Using PMSGUI.getValues is exactly where you are trying to access a non-static method in a static context. To access a method, you have to create an instance and use the method with that instance.

– RealSkeptic
Jan 1 at 17:25

Thanks for the reply. What do you mean by create an instance of the method exactly?

– Top Lit
Jan 1 at 17:29

Create an instance of the class, not of the method. Use new PMSGUI() somewhere. I'm sure you already have an instance or the GUI would not be shown.

– RealSkeptic
Jan 1 at 17:32

Oh I see. Would creating a new instance of the GUI reset all the values in the text field then, or does it create an instance while keeping the inputted values? Sorry if I'm looking at this the wrong way.

– Top Lit
Jan 1 at 17:35

You are supposed to use the same instance that you are using already, otherwise you'll have two GUIs appear.

– RealSkeptic
Jan 1 at 17:41

|
show 3 more comments

1 Answer
1

active

oldest

votes

The error message tells you that getValues(), a non-static method, needs a non-static context. This context is provided by any instance of the defining class. An instantiation is a construction from a "static" class into a "dynamic" object (this object may only exist, while your program is running). Since one class can have many such objects, created from one class, each of them is called an instance.

Now if there should be at most one such window at a time, then you can apply the Singleton pattern to your GUI class. Then you would be able to access all non-static methods through the provided static instance of the class.

public class PMSGUI extends javax.swing.JFrame {

    private static final PMSGUI instance = new PMSGUI();



    private PMSGUI() {} // Restrict instantiation



    public static PMSGUI getInstance() {

        return instance;

    }



    // Add your custom methods further down here

}

Now to reference it in your calling method, use

PMSGUI.getInstance().getValues(accountType, firstname, lastname, address, postcode, sex, age);

answered Jan 1 at 19:44

Kод it

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1 Answer
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oldest

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public class PMSGUI extends javax.swing.JFrame {

    private static final PMSGUI instance = new PMSGUI();



    private PMSGUI() {} // Restrict instantiation



    public static PMSGUI getInstance() {

        return instance;

    }



    // Add your custom methods further down here

}

Now to reference it in your calling method, use

PMSGUI.getInstance().getValues(accountType, firstname, lastname, address, postcode, sex, age);

answered Jan 1 at 19:44

Kод it

2,67342240

add a comment |

public class PMSGUI extends javax.swing.JFrame {

    private static final PMSGUI instance = new PMSGUI();



    private PMSGUI() {} // Restrict instantiation



    public static PMSGUI getInstance() {

        return instance;

    }



    // Add your custom methods further down here

}

Now to reference it in your calling method, use

PMSGUI.getInstance().getValues(accountType, firstname, lastname, address, postcode, sex, age);

answered Jan 1 at 19:44

Kод it

2,67342240

add a comment |

public class PMSGUI extends javax.swing.JFrame {

    private static final PMSGUI instance = new PMSGUI();



    private PMSGUI() {} // Restrict instantiation



    public static PMSGUI getInstance() {

        return instance;

    }



    // Add your custom methods further down here

}

Now to reference it in your calling method, use

PMSGUI.getInstance().getValues(accountType, firstname, lastname, address, postcode, sex, age);

answered Jan 1 at 19:44

Kод it

2,67342240

public class PMSGUI extends javax.swing.JFrame {

    private static final PMSGUI instance = new PMSGUI();



    private PMSGUI() {} // Restrict instantiation



    public static PMSGUI getInstance() {

        return instance;

    }



    // Add your custom methods further down here

}

Now to reference it in your calling method, use

PMSGUI.getInstance().getValues(accountType, firstname, lastname, address, postcode, sex, age);

answered Jan 1 at 19:44

Kод it

2,67342240

answered Jan 1 at 19:44

Kод it

2,67342240

answered Jan 1 at 19:44

Kод it

2,67342240

answered Jan 1 at 19:44

Kод it

2,67342240

add a comment |

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