Java text field won't update

Question

When I press the button, the text field doesn't update and every time it shows 20000.

The task is to choose from a combo box and then the text field will show you a number.

if STUDIO , Pb. show 10000
if F3 , pb shows 20000

String typoo = typo.getSelectedItem().toString();
int pbb = 0 ;
if (typoo == "Studio") {
    pbb = 10000;
} 
else if (typoo == "F3") {
    pbb = 20000;
}

JButton btnNewButton = new JButton("UPDATE");
btnNewButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        pb.setText(String.valueOf(pbb));
    }
});

Don't use `==` to test for string equality, use the `equals()` method instead, for example: `if (typoo.equals("Studio")) {`. To ignore letter case you can use: `if (typoo.equalsIgnoreCase("studio")) {`. — DevilsHnd - 退職した, Mar 12 '23 at 22:45

score -1 · Answer 1 · answered Mar 12 '23 at 22:47

-1

the if statements should be inside the actionPerformed() method and use the function String.equals() to compare Strings

answered Mar 12 '23 at 22:47

Hakim

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Java text field won't update

1 Answers1