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PODeselect default selection on JTextfield
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  1. PODeselect default selection on JTextfield
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    copied!<p>When using JTextFields i like to set a default text.</p> <p>Then i run the program and this default text will automatically be selected (at least when you have only one field). In other words, if I type a letter right away, the default text will be deleted and replaced by the new one.</p> <p>My question is how I can change the default settings in a way that allows me to type a letter without deleting the default text? I would like the letter to just be added at the end of the default text.</p> <p>Here's my code:</p> <pre><code> public class ButtonsNText extends JPanel implements ActionListener, KeyListener { private JTextField TextLine; private JToggleButton UpperCaseButton; private JToggleButton LowerCaseButton; private JCheckBox ContinuousButton; private ButtonGroup myButtonGroup; public ButtonsNText(){ TextLine = new JTextField(10); add(TextLine); TextLine.setName("TextLine"); TextLine.setText("default text"); TextLine.setCaretPosition(TextLine.getText().length()); TextLine.addKeyListener(this); myButtonGroup = new ButtonGroup(); UpperCaseButton = new JToggleButton("Upper case"); add(UpperCaseButton);UpperCaseButton.setName("UpperCaseButton"); LowerCaseButton = new JToggleButton("Lower case"); add(LowerCaseButton); LowerCaseButton.setName("LowerCaseButton"); ContinuousButton = new JCheckBox("Continuous?"); add(ContinuousButton); ContinuousButton.setName("ContinuousButton"); myButtonGroup.add(UpperCaseButton); myButtonGroup.add(LowerCaseButton); UpperCaseButton.addActionListener(this); LowerCaseButton.addActionListener(this); ContinuousButton.addActionListener(this); } public static void main(String[] args) { JFrame frame = new JFrame("Hello world example"); frame.add(new ButtonsNText()); frame.pack(); frame.setVisible(true); } @Override public void actionPerformed(ActionEvent e) { if(e.getSource() == UpperCaseButton){ TextLine.setText(TextLine.getText().toUpperCase()); } else if(e.getSource() == LowerCaseButton){ TextLine.setText(TextLine.getText().toLowerCase()); } } @Override public void keyReleased(KeyEvent k) { if(ContinuousButton.isSelected()){ if(UpperCaseButton.isSelected()){ int pos = TextLine.getCaretPosition(); TextLine.setText(TextLine.getText().toUpperCase()); TextLine.setCaretPosition(pos); } else if(LowerCaseButton.isSelected()){ int pos = TextLine.getCaretPosition(); TextLine.setText(TextLine.getText().toLowerCase()); TextLine.setCaretPosition(pos); } } int key = k.getKeyCode(); if(key == KeyEvent.VK_ENTER){ if(UpperCaseButton.isSelected()){ TextLine.setText(TextLine.getText().toUpperCase()); } else if(LowerCaseButton.isSelected()){ TextLine.setText(TextLine.getText().toLowerCase()); } } } </code></pre> <p>}</p> <p>I have tried things like isFocusable(), setFocusable(), setCaterPosition() and other similar methods, but here I think I need a different approach. </p>
 

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