| Return | Method | Summary |
|---|---|---|
| int | size() | Returns the number of elements in this list. |
| void | trimToSize() | Trims the capacity of this ArrayList instance to be the list's current size. |
import java.util.ArrayList;
public class Main {
public static void main(String args[]) {
ArrayList<String> al = new ArrayList<String>();
al.add("C");
al.add("java2s.com");
al.add("D");
al.add("F");
al.add(1, "java2s.com");
al.trimToSize();
System.out.println(al.size());
}
}
The output:
5
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