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Netbeans and java

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  • 24-09-2014 9:02pm
    #1
    whats newxt
    Closed Accounts Posts: 431 ✭✭


    Can anyone help me out I'm looking to build a simple application that has a jtextfield so the user enters a number and the value is saved as a variable. How would I archive this?


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    #2
    Seridisand
    Registered Users Posts: 291 ✭✭Seridisand


    whats newxt wrote: »
    Can anyone help me out I'm looking to build a simple application that has a jtextfield so the user enters a number and the value is saved as a variable. How would I archive this?

    Can you clarify "archive"?

    Do you mean you want store the value so that it can be retrieved? You would need to either use a back end storage like a database or write the variable value to a file and then read the file from the application.


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    #3
    whats newxt
    Closed Accounts Posts: 431 ✭✭whats newxt


    Seridisand wrote: »
    Can you clarify "archive"?

    Do you mean you want store the value so that it can be retrieved? You would need to either use a back end storage like a database or write the variable value to a file and then read the file from the application.

    Sorry I'm on the phone I mean achieve. Basically I want to take whatevers in the jtextfield and save it as a variable and then print it out on screen.


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    #4
    Seridisand
    Registered Users Posts: 291 ✭✭Seridisand


    If you want to accept it as a string you could do it like this 
    String yourString = yourJTextField.getText();
    Or like this as an integer value 
    int myInt = Integer.parseInt(yourJTextField.getText());

    You'll need to create some sort of Action Event - button event ideally to trigger the variable value being set to the value of the JTextField.

    http://docs.oracle.com/javase/tutorial/uiswing/events/intro.html


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    #5
    whats newxt
    Closed Accounts Posts: 431 ✭✭whats newxt


    Seridisand wrote: »
    If you want to accept it as a string you could do it like this 
    String yourString = yourJTextField.getText();
    Or like this as an integer value 
    int myInt = Integer.parseInt(yourJTextField.getText());

    You'll need to create some sort of Action Event - button event ideally to trigger the variable value being set to the value of the JTextField.

    http://docs.oracle.com/javase/tutorial/uiswing/events/intro.html

    Thanks very much that works perfect i have another question whats the best event to use on the main window to trigger the event code? i want everything to update without pressing a button


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    #6
    Seridisand
    Registered Users Posts: 291 ✭✭Seridisand


    Have a look at the link in my last post, you could add a component/frame/focus event listener to update the main frame, but I'd recommend using a component like a button event to trigger the update


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