Java Data Type - 如何将字符串格式的日期转换为另一种格式

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class Main {

  public static void main(String[] args) throws Exception {

    String laDate = "2014-06-15";
    String dateString = laDate.substring(8, 10) + "/" + laDate.substring(5, 7)
        + "/" + laDate.substring(0, 4);
    Date date = new SimpleDateFormat("dd/MM/yyyy").parse(dateString);
    String dateFormat = "dd-MMM-yyyy";
    SimpleDateFormat sdf = new SimpleDateFormat(dateFormat, new Locale("en_US"));
    String tDate = sdf.format(date);
    System.out.println(tDate);

  }

}