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Fixed it.



public void actionPerformed (ActionEvent ae)
{
String veldinhoud = uitvoerVeld.getText();
uitvoerVeld.setText(invoerVeld.getText());
invoerVeld.setText(veldinhoud);...

Tried this:



public void actionPerformed (ActionEvent ae)
{
String veldinhoud = invoerVeld.getText();
uitvoerVeld.setText(invoerVeld.getText());...

How would I do this?:) Sorry, really new in Java.

This code generates 2 text fields and one button. Typing a text in the first textfield and then pressing on the button, copies the text from the first textfield (invoerVeld) to the second textfield...