How can i pass a value in array into .setText()?

i want to display a value in an array into a JTextField. May i know how to do it?
eg:
JTextField UserName;
UserName.setText(s);
but it doesn't display the value into the JTextfield.

ok... is s an array?
String[] s = {"s1", "s2"};Either you expect 1 value...
username.setText(s[0]);
// or
username.setText(s[1]);Or you expect both:
StringBuffer sb = new StringBuffer("");
for(int x = 0; x < s.length; x++) {
   if(x != 0) sb.append(", ");
   sb.append(s[x])
username.setText(sb.toString());

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