JAVA

android list tostring

ArrayList<String> data = new ArrayList<String>();
data.add("First");
data.add("Second");
data.add("Third");

StringBuilder sb = new StringBuilder();
for (String item : data) {
  sb.append(item).append("
");
}
sb.setLength(sb.length() - 1);

// generates output:
// First
// Second
// Third

android list to string

String[] data = { "First", "Second", "Third" };
StringBuilder sb = new StringBuilder();
for (String item : data) {
  sb.append(item).append(", ");
}
sb.setLength(sb.length() - 2);

// generates output:
// First, Second, Third