In Kotlin you can use this code : - 

Simple only need to change date format to this "dd-MM-yyyy" 
val d = Date()
val str: CharSequence = DateFormat.format("dd-MM-yyyy", d.getTime())
Log.e("", str.toString())
    
In Java You use this code: - 
    
Date date = new Date();
CharSequence str  = DateFormat.format("dd-MM-yyyy", date.getTime());
Log.e("Date", str.toString())

 String date = new SimpleDateFormat("yyyy-MM-dd").format(new Date());

//导入Date类为java.util

工作就像一个魅力和转换为字符串作为奖励;)

SimpleDateFormat currentDate = new SimpleDateFormat("dd/MM/yyyy");
      Date todayDate = new Date();
    String thisDate = currentDate.format(todayDate);

Calendar cal = Calendar.getInstance();      
Calendar dt = Calendar.getInstance(); 
dt.clear();
dt.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),cal.get(Calendar.DATE)); 
return dt.getTime();        

  public static String getDateTime() {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMMM dd, yyyy HH:mm:ss", Locale.getDefault());
        Date date = new Date();
        return simpleDateFormat.format(date);
    }

我尝试过这种方法，对我很有效。

val df = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ", Locale.getDefault()) // pass the format pattern that you like and done.
println(df.format(Date()))